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64268907 = 3109196541
BaseRepresentation
bin1111010100101…
…0101001101011
311110221012100220
43311022221223
5112423101112
610213301123
71410163623
oct365125153
9143835326
1064268907
11333071aa
12196347a3
1310413051
14876d883
15599798c
hex3d4aa6b

64268907 has 8 divisors (see below), whose sum is σ = 86478480. Its totient is φ = 42452640.

The previous prime is 64268899. The next prime is 64268909. The reversal of 64268907 is 70986246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64268907 - 23 = 64268899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64268909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97944 + ... + 98597.

It is an arithmetic number, because the mean of its divisors is an integer number (10809810).

Almost surely, 264268907 is an apocalyptic number.

64268907 is a deficient number, since it is larger than the sum of its proper divisors (22209573).

64268907 is a wasteful number, since it uses less digits than its factorization.

64268907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196653.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 64268907 is about 8016.7890704446. The cubic root of 64268907 is about 400.5594401188.

The spelling of 64268907 in words is "sixty-four million, two hundred sixty-eight thousand, nine hundred seven".

Divisors: 1 3 109 327 196541 589623 21422969 64268907