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76045663 = 264728729
BaseRepresentation
bin1001000100001…
…01110101011111
312022002112001001
410202011311133
5123431430123
611313531131
71612243321
oct442056537
9168075031
1076045663
1139a20261
1221573aa7
13129a7545
14a157611
156a220ad
hex4885d5f

76045663 has 4 divisors (see below), whose sum is σ = 76077040. Its totient is φ = 76014288.

The previous prime is 76045609. The next prime is 76045687. The reversal of 76045663 is 36654067.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36654067 = 163722391.

It is a cyclic number.

It is not a de Polignac number, because 76045663 - 217 = 75914591 is a prime.

It is a super-2 number, since 2×760456632 = 11565885722219138, 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 (76045363) 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, 11718 + ... + 17011.

It is an arithmetic number, because the mean of its divisors is an integer number (19019260).

Almost surely, 276045663 is an apocalyptic number.

76045663 is a deficient number, since it is larger than the sum of its proper divisors (31377).

76045663 is a wasteful number, since it uses less digits than its factorization.

76045663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31376.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 76045663 is about 8720.4164464778. The cubic root of 76045663 is about 423.6671749552.

The spelling of 76045663 in words is "seventy-six million, forty-five thousand, six hundred sixty-three".

Divisors: 1 2647 28729 76045663