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76693137894 = 23220393208931
BaseRepresentation
bin100011101101101000…
…1000110100111100110
321022221212200001222200
41013123101012213212
52224031420403034
655122104035330
75353345626132
oct1073321064746
9238855601880
1076693137894
112a58630569a
1212a44462b46
137302cbc289
1439d78d43c2
151edd012a99
hex11db4469e6

76693137894 has 24 divisors (see below), whose sum is σ = 166177409112. Its totient is φ = 25563003360.

The previous prime is 76693137893. The next prime is 76693137929. The reversal of 76693137894 is 49873139667.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76693137893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 262609 + ... + 471539.

It is an arithmetic number, because the mean of its divisors is an integer number (6924058713).

Almost surely, 276693137894 is an apocalyptic number.

76693137894 is an abundant number, since it is smaller than the sum of its proper divisors (89484271218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76693137894 is a wasteful number, since it uses less digits than its factorization.

76693137894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229332 (or 229329 counting only the distinct ones).

The product of its digits is 41150592, while the sum is 63.

The spelling of 76693137894 in words is "seventy-six billion, six hundred ninety-three million, one hundred thirty-seven thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 9 18 20393 40786 61179 122358 183537 208931 367074 417862 626793 1253586 1880379 3760758 4260729883 8521459766 12782189649 25564379298 38346568947 76693137894