Number
2,220,001
- Positive
- Odd
- Composite
- 7 digits
2,220,001 is an odd 7-digit integer and a composite number. It has 8 divisors and a digital root of 7.
Number properties
ParityOddnot divisible by 2
SignPositive
PrimalityComposite
Absolute value2,220,001
Digit count7
Digit sum7
Digital root7repeated digit sum
PalindromicNoreads differently backwards
Happy numberYessquared-digit sums reach 1
Harshad numberYesdivisible by its own digit sum
Factors & divisors
Prime factorisation7 × 83 × 3,821
Distinct prime factors37, 83, 3,821
Number of divisors8
Sum of divisors σ(n)2,568,384
Aliquot sum348,383sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)1,879,440integers below n that share no factor with it
SquarefreeYesno repeated prime factor
All divisors1, 7, 83, 581, 3,821, 26,747, 317,143, 2,220,0018 in total
Arithmetic
Previous number2,220,000
Next number2,220,002
Double4,440,002
Half1,110,000.5
Square4,928,404,440,001
Cube10,941,062,785,206,660,001
Square root1,489.966778153≈irrational, shown to 9 decimal places
Cube root130.452094589≈
Negation-2,220,001
Reciprocal4.50450248 × 10^-7≈
Representations
Decimal2,220,001
Binary100001110111111110000122 bits
Octal10357741
Hexadecimal21DFE1
Base 361BKYP
Roman numeralNot defined above 3,999there is no agreed standard notation
In wordstwo million, two hundred and twenty thousand and one
Ordinaltwo million, two hundred and twenty thousand and first
Scientific notation2.220001 × 10^6
Engineering notation2.220001 × 10^6
Nearest landmarks
Powers & multiples
2,220,001 to the power 24,928,404,440,001
2,220,001 to the power 310,941,062,785,206,660,001
2,220,001 to the power 424,289,170,324,221,570,408,880,001
2,220,001 to the power 553,921,982,408,942,210,529,284,011,100,001
First ten multiples2,220,001, 4,440,002, 6,660,003, 8,880,004, 11,100,005, 13,320,006, 15,540,007, 17,760,008, 19,980,009, 22,200,010
Powers of twoBetween 2^21 (2,097,152) and 2^22 (4,194,304)
Divisibility tests
Divisible by 2No, remainder 1
Divisible by 3No, remainder 1
Divisible by 4No, remainder 1
Divisible by 5No, remainder 1
Divisible by 6No, remainder 1
Divisible by 7Yes
Divisible by 8No, remainder 1
Divisible by 9No, remainder 7
Divisible by 10No, remainder 1
Divisible by 11No, remainder 3
Divisible by 12No, remainder 1
Divisible by 100No, remainder 1
Collatz (3n + 1) trajectory
Steps to reach 1303the total stopping time
Highest value reached1,539,412,288693× the starting value
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps2,220,001 → 6,660,004 → 3,330,002 → 1,665,001 → 4,995,004 → 2,497,502 → 1,248,751 → 3,746,254 → 1,873,127 → 5,619,382 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage222,000,100%
2,220,001% as a decimal22,200.01
2,220,001% of 1002,220,001
2,220,001% of 1,00022,200,010
As a fraction of 1002,220,001/100
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