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64925313 = 343503297
BaseRepresentation
bin1111011110101…
…0111010000001
311112011112210020
43313222322001
5113110102223
610235324053
71415566425
oct367527201
9145145706
1064925313
1133715392
12198b0629
13105b2a5b
1488a0b85
155a771e3
hex3deae81

64925313 has 8 divisors (see below), whose sum is σ = 88580448. Its totient is φ = 42276864.

The previous prime is 64925279. The next prime is 64925359. The reversal of 64925313 is 31352946.

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

It is not a de Polignac number, because 64925313 - 210 = 64924289 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64925383) 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, 251520 + ... + 251777.

It is an arithmetic number, because the mean of its divisors is an integer number (11072556).

Almost surely, 264925313 is an apocalyptic number.

It is an amenable number.

64925313 is a deficient number, since it is larger than the sum of its proper divisors (23655135).

64925313 is a wasteful number, since it uses less digits than its factorization.

64925313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503343.

The product of its digits is 19440, while the sum is 33.

The square root of 64925313 is about 8057.6245258761. The cubic root of 64925313 is about 401.9185189181.

The spelling of 64925313 in words is "sixty-four million, nine hundred twenty-five thousand, three hundred thirteen".

Divisors: 1 3 43 129 503297 1509891 21641771 64925313