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64970374 = 27394709
BaseRepresentation
bin1111011111010…
…1111010000110
311112020211121011
43313311322012
5113113022444
610240312434
71416145000
oct367657206
9145224534
1064970374
1133746227
121991271a
13105ca411
1488b3370
155a85734
hex3df5e86

64970374 has 16 divisors (see below), whose sum is σ = 113652000. Its totient is φ = 27844152.

The previous prime is 64970359. The next prime is 64970383. The reversal of 64970374 is 47307946.

It is a super-2 number, since 2×649703742 = 8442298995399752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46669 + ... + 48040.

It is an arithmetic number, because the mean of its divisors is an integer number (7103250).

Almost surely, 264970374 is an apocalyptic number.

64970374 is a deficient number, since it is larger than the sum of its proper divisors (48681626).

64970374 is an equidigital number, since it uses as much as digits as its factorization.

64970374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94732 (or 94718 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 64970374 is about 8060.4202123711. The cubic root of 64970374 is about 402.0114804111.

The spelling of 64970374 in words is "sixty-four million, nine hundred seventy thousand, three hundred seventy-four".

Divisors: 1 2 7 14 49 98 343 686 94709 189418 662963 1325926 4640741 9281482 32485187 64970374