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76907137 = 81799403
BaseRepresentation
bin1001001010110…
…00001010000001
312100201021202111
410211120022001
5124142012022
611344215321
71622462026
oct445301201
9170637674
1076907137
113a45951a
122190a541
1312c196a8
14a2dd54d
156b42477
hex4958281

76907137 has 4 divisors (see below), whose sum is σ = 76924720. Its totient is φ = 76889556.

The previous prime is 76907123. The next prime is 76907141. The reversal of 76907137 is 73170967.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 76907137 - 211 = 76905089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76907137.

It is not an unprimeable number, because it can be changed into a prime (76907437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3478 + ... + 12880.

It is an arithmetic number, because the mean of its divisors is an integer number (19231180).

Almost surely, 276907137 is an apocalyptic number.

It is an amenable number.

76907137 is a deficient number, since it is larger than the sum of its proper divisors (17583).

76907137 is an equidigital number, since it uses as much as digits as its factorization.

76907137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17582.

The product of its (nonzero) digits is 55566, while the sum is 40.

The square root of 76907137 is about 8769.6714305611. The cubic root of 76907137 is about 425.2609921719.

The spelling of 76907137 in words is "seventy-six million, nine hundred seven thousand, one hundred thirty-seven".

Divisors: 1 8179 9403 76907137