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80699793 = 326899931
BaseRepresentation
bin1001100111101…
…10000110010001
312121211222022020
410303312012101
5131124343133
612001402053
71666636236
oct463660621
9177758266
1080699793
1141609a49
1223039329
1313946a75
14aa0978d
1571410b3
hex4cf6191

80699793 has 4 divisors (see below), whose sum is σ = 107599728. Its totient is φ = 53799860.

The previous prime is 80699743. The next prime is 80699803. The reversal of 80699793 is 39799608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80699793 - 214 = 80683409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80699743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13449963 + ... + 13449968.

It is an arithmetic number, because the mean of its divisors is an integer number (26899932).

Almost surely, 280699793 is an apocalyptic number.

It is an amenable number.

80699793 is a deficient number, since it is larger than the sum of its proper divisors (26899935).

80699793 is a wasteful number, since it uses less digits than its factorization.

80699793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26899934.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 80699793 is about 8983.3063512273. The cubic root of 80699793 is about 432.1396742715.

The spelling of 80699793 in words is "eighty million, six hundred ninety-nine thousand, seven hundred ninety-three".

Divisors: 1 3 26899931 80699793