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80692385 = 516138477
BaseRepresentation
bin1001100111101…
…00010010100001
312121211121010212
410303310102201
5131124124020
612001303505
71666605524
oct463642241
9177747125
1080692385
1141604424
1223034b95
1313943597
14aa06bbb
15713dcc5
hex4cf44a1

80692385 has 4 divisors (see below), whose sum is σ = 96830868. Its totient is φ = 64553904.

The previous prime is 80692379. The next prime is 80692393. The reversal of 80692385 is 58329608.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22429696 + 58262689 = 4736^2 + 7633^2 .

It is a cyclic number.

It is not a de Polignac number, because 80692385 - 24 = 80692369 is a prime.

It is a super-2 number, since 2×806923852 = 13022521993976450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8069234 + ... + 8069243.

It is an arithmetic number, because the mean of its divisors is an integer number (24207717).

Almost surely, 280692385 is an apocalyptic number.

It is an amenable number.

80692385 is a deficient number, since it is larger than the sum of its proper divisors (16138483).

80692385 is a wasteful number, since it uses less digits than its factorization.

80692385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16138482.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 80692385 is about 8982.8940214165. The cubic root of 80692385 is about 432.1264508230.

The spelling of 80692385 in words is "eighty million, six hundred ninety-two thousand, three hundred eighty-five".

Divisors: 1 5 16138477 80692385