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76832081 is a prime number
BaseRepresentation
bin1001001010001…
…01110101010001
312100120110210122
410211011311101
5124132111311
611342440025
71622030144
oct445056521
9170513718
1076832081
113a408097
1221893015
1312bc1491
14a2c005b
156b2a0db
hex4945d51

76832081 has 2 divisors, whose sum is σ = 76832082. Its totient is φ = 76832080.

The previous prime is 76832069. The next prime is 76832083. The reversal of 76832081 is 18023867.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43296400 + 33535681 = 6580^2 + 5791^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-76832081 is a prime.

It is a super-2 number, since 2×768320812 = 11806337341581122, which contains 22 as substring.

Together with 76832083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76832083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38416040 + 38416041.

It is an arithmetic number, because the mean of its divisors is an integer number (38416041).

Almost surely, 276832081 is an apocalyptic number.

It is an amenable number.

76832081 is a deficient number, since it is larger than the sum of its proper divisors (1).

76832081 is an equidigital number, since it uses as much as digits as its factorization.

76832081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 76832081 is about 8765.3910922445. The cubic root of 76832081 is about 425.1226054574.

The spelling of 76832081 in words is "seventy-six million, eight hundred thirty-two thousand, eighty-one".