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80713499 = 363122229
BaseRepresentation
bin1001100111110…
…01011100011011
312121212200002212
410303321130123
5131130312444
612001545335
72000024216
oct463713433
9177780085
1080713499
1141619279
122304524b
1313950089
14aa1077d
15714519e
hex4cf971b

80713499 has 4 divisors (see below), whose sum is σ = 80739360. Its totient is φ = 80687640.

The previous prime is 80713489. The next prime is 80713513. The reversal of 80713499 is 99431708.

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 80713499 - 24 = 80713483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80713489) 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, 7484 + ... + 14745.

It is an arithmetic number, because the mean of its divisors is an integer number (20184840).

Almost surely, 280713499 is an apocalyptic number.

80713499 is a deficient number, since it is larger than the sum of its proper divisors (25861).

80713499 is a wasteful number, since it uses less digits than its factorization.

80713499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25860.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 80713499 is about 8984.0691782733. The cubic root of 80713499 is about 432.1641376597.

The spelling of 80713499 in words is "eighty million, seven hundred thirteen thousand, four hundred ninety-nine".

Divisors: 1 3631 22229 80713499