Number
35
- Positive
- Odd
- Composite
- 2 digits
35 is an odd 2-digit integer and a composite number. It has 4 divisors and a digital root of 8.
Number properties
ParityOddnot divisible by 2
SignPositive
PrimalityComposite
Absolute value35
Digit count2
Digit sum8
Digital root8repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum
Factors & divisors
Prime factorisation5 × 7
Distinct prime factors25, 7
Number of divisors4
Sum of divisors σ(n)48
Aliquot sum13sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)24integers below n that share no factor with it
SquarefreeYesno repeated prime factor
All divisors1, 5, 7, 354 in total
Arithmetic
Representations
Decimal35
Binary1000116 bits
Octal43
Hexadecimal23
Base 36Z
Roman numeralXXXV
In wordsthirty-five
Ordinalthirty-fifth
Scientific notation3.5 × 10^1
Engineering notation35
Nearest landmarks
Powers & multiples
35 to the power 21,225
35 to the power 342,875
35 to the power 41,500,625
35 to the power 552,521,875
First ten multiples35, 70, 105, 140, 175, 210, 245, 280, 315, 350
Powers of twoBetween 2^5 (32) and 2^6 (64)
Divisibility tests
Divisible by 2No, remainder 1
Divisible by 3No, remainder 2
Divisible by 4No, remainder 3
Divisible by 5Yes
Divisible by 6No, remainder 5
Divisible by 7Yes
Divisible by 8No, remainder 3
Divisible by 9No, remainder 8
Divisible by 10No, remainder 5
Divisible by 11No, remainder 2
Divisible by 12No, remainder 11
Divisible by 100No, remainder 35
Collatz (3n + 1) trajectory
Steps to reach 113the total stopping time
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps35 → 106 → 53 → 160 → 80 → 40 → 20 → 10 → 5 → 16 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage3,500%
35% as a decimal0.35
35% of 10035
35% of 1,000350
As a fraction of 10035/100
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