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80682923 = 345723339
BaseRepresentation
bin1001100111100…
…01111110101011
312121211010011102
410303301332223
5131123323143
612001152015
71666536116
oct463617653
9177733142
1080682923
11415a8302
122302b60b
131393c199
14aa0357d
15713b0b8
hex4cf1fab

80682923 has 4 divisors (see below), whose sum is σ = 80709720. Its totient is φ = 80656128.

The previous prime is 80682859. The next prime is 80682971. The reversal of 80682923 is 32928608.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 80682923 - 26 = 80682859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80682023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8213 + ... + 15126.

It is an arithmetic number, because the mean of its divisors is an integer number (20177430).

Almost surely, 280682923 is an apocalyptic number.

80682923 is a deficient number, since it is larger than the sum of its proper divisors (26797).

80682923 is a wasteful number, since it uses less digits than its factorization.

80682923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26796.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 80682923 is about 8982.3673382912. The cubic root of 80682923 is about 432.1095597607.

The spelling of 80682923 in words is "eighty million, six hundred eighty-two thousand, nine hundred twenty-three".

Divisors: 1 3457 23339 80682923