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76160021 = 715172053
BaseRepresentation
bin1001000101000…
…01110000010101
312022022022220112
410202201300111
5123444110041
611320212405
71613230610
oct442416025
9168268815
1076160021
1139a99173
122160a105
1312a17602
14a187177
156a45deb
hex48a1c15

76160021 has 8 divisors (see below), whose sum is σ = 87617664. Its totient is φ = 64846800.

The previous prime is 76159997. The next prime is 76160027. The reversal of 76160021 is 12006167.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-76160021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76160027) 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, 34970 + ... + 37083.

It is an arithmetic number, because the mean of its divisors is an integer number (10952208).

Almost surely, 276160021 is an apocalyptic number.

It is an amenable number.

76160021 is a deficient number, since it is larger than the sum of its proper divisors (11457643).

76160021 is a wasteful number, since it uses less digits than its factorization.

76160021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72211.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 76160021 is about 8726.9708948753. The cubic root of 76160021 is about 423.8794398094.

Adding to 76160021 its reverse (12006167), we get a palindrome (88166188).

The spelling of 76160021 in words is "seventy-six million, one hundred sixty thousand, twenty-one".

Divisors: 1 7 151 1057 72053 504371 10880003 76160021