Base | Representation |
---|---|
bin | 1111011011011… |
… | …0111001000100 |
3 | 11111202201112101 |
4 | 3312312321010 |
5 | 113031243020 |
6 | 10231001444 |
7 | 1414021324 |
oct | 366667104 |
9 | 144681471 |
10 | 64712260 |
11 | 3358a308 |
12 | 19809284 |
13 | 10539aa2 |
14 | 8847284 |
15 | 5a3400a |
hex | 3db6e44 |
64712260 has 48 divisors (see below), whose sum is σ = 140709744. Its totient is φ = 24979968.
The previous prime is 64712257. The next prime is 64712267. The reversal of 64712260 is 6221746.
It can be written as a sum of positive squares in 8 ways, for example, as 2365444 + 62346816 = 1538^2 + 7896^2 .
It is not an unprimeable number, because it can be changed into a prime (64712267) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115902 + ... + 116458.
It is an arithmetic number, because the mean of its divisors is an integer number (2931453).
Almost surely, 264712260 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 64712260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70354872).
64712260 is an abundant number, since it is smaller than the sum of its proper divisors (75997484).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64712260 is a wasteful number, since it uses less digits than its factorization.
64712260 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 760 (or 758 counting only the distinct ones).
The product of its (nonzero) digits is 4032, while the sum is 28.
The square root of 64712260 is about 8044.3930784118. The cubic root of 64712260 is about 401.4784040716.
The spelling of 64712260 in words is "sixty-four million, seven hundred twelve thousand, two hundred sixty".
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