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64152976939 = 318324933143
BaseRepresentation
bin111011101111110100…
…001011111000101011
320010120221010220002221
4323233310023320223
52022341130230224
645245500534511
74430525210122
oct735764137053
9203527126087
1064152976939
1125230757107
1210524851437
136084c807ac
143168268ab9
151a071446e4
hexeefd0be2b

64152976939 has 8 divisors (see below), whose sum is σ = 67020291072. Its totient is φ = 61335529320.

The previous prime is 64152976933. The next prime is 64152976961. The reversal of 64152976939 is 93967925146.

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

It is a cyclic number.

It is not a de Polignac number, because 64152976939 - 229 = 63616106027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64152976933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12463999 + ... + 12469144.

It is an arithmetic number, because the mean of its divisors is an integer number (8377536384).

Almost surely, 264152976939 is an apocalyptic number.

64152976939 is a deficient number, since it is larger than the sum of its proper divisors (2867314133).

64152976939 is a wasteful number, since it uses less digits than its factorization.

64152976939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24933257.

The product of its digits is 22044960, while the sum is 61.

The spelling of 64152976939 in words is "sixty-four billion, one hundred fifty-two million, nine hundred seventy-six thousand, nine hundred thirty-nine".

Divisors: 1 31 83 2573 24933143 772927433 2069450869 64152976939