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76904690 = 2547163627
BaseRepresentation
bin1001001010101…
…11100011110010
312100201011101212
410211113203302
5124141422230
611344200122
71622451632
oct445274362
9170634355
1076904690
113a4576a5
1221909042
1312c18545
14a2dc6c2
156b41895
hex49578f2

76904690 has 16 divisors (see below), whose sum is σ = 141374592. Its totient is φ = 30107184.

The previous prime is 76904603. The next prime is 76904693. The reversal of 76904690 is 9640967.

It is a super-2 number, since 2×769046902 = 11828662687992200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76904693) 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, 81344 + ... + 82283.

It is an arithmetic number, because the mean of its divisors is an integer number (8835912).

Almost surely, 276904690 is an apocalyptic number.

76904690 is a deficient number, since it is larger than the sum of its proper divisors (64469902).

76904690 is a wasteful number, since it uses less digits than its factorization.

76904690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163681.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 76904690 is about 8769.5319145323. The cubic root of 76904690 is about 425.2564818637.

The spelling of 76904690 in words is "seventy-six million, nine hundred four thousand, six hundred ninety".

Divisors: 1 2 5 10 47 94 235 470 163627 327254 818135 1636270 7690469 15380938 38452345 76904690