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76904319 = 325634773
BaseRepresentation
bin1001001010101…
…11011101111111
312100201010220010
410211113131333
5124141414234
611344154303
71622450562
oct445273577
9170633803
1076904319
113a457398
1221908993
1312c1831b
14a2dc4d9
156b416e9
hex495777f

76904319 has 4 divisors (see below), whose sum is σ = 102539096. Its totient is φ = 51269544.

The previous prime is 76904309. The next prime is 76904323. The reversal of 76904319 is 91340967.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 76904319 - 25 = 76904287 is a prime.

It is a super-2 number, since 2×769043192 = 11828548561707522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76904309) 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, 12817384 + ... + 12817389.

It is an arithmetic number, because the mean of its divisors is an integer number (25634774).

Almost surely, 276904319 is an apocalyptic number.

76904319 is a deficient number, since it is larger than the sum of its proper divisors (25634777).

76904319 is a wasteful number, since it uses less digits than its factorization.

76904319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25634776.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 76904319 is about 8769.5107617244. The cubic root of 76904319 is about 425.2557980284.

The spelling of 76904319 in words is "seventy-six million, nine hundred four thousand, three hundred nineteen".

Divisors: 1 3 25634773 76904319