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76520679 = 331822803
BaseRepresentation
bin1001000111110…
…01110011100111
312022222122122020
410203321303213
5124042130204
611332034223
71616262234
oct443716347
9168878566
1076520679
113a215134
1221762973
1312b12811
14a23c78b
156ab7bd9
hex48f9ce7

76520679 has 8 divisors (see below), whose sum is σ = 105318912. Its totient is φ = 49368120.

The previous prime is 76520669. The next prime is 76520737. The reversal of 76520679 is 97602567.

It is a happy number.

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

It is not a de Polignac number, because 76520679 - 215 = 76487911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76520679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76520629) 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, 411309 + ... + 411494.

It is an arithmetic number, because the mean of its divisors is an integer number (13164864).

Almost surely, 276520679 is an apocalyptic number.

76520679 is a deficient number, since it is larger than the sum of its proper divisors (28798233).

76520679 is a wasteful number, since it uses less digits than its factorization.

76520679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822837.

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 76520679 is about 8747.6099021390. The cubic root of 76520679 is about 424.5474842173.

The spelling of 76520679 in words is "seventy-six million, five hundred twenty thousand, six hundred seventy-nine".

Divisors: 1 3 31 93 822803 2468409 25506893 76520679