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79988315 = 5111785549
BaseRepresentation
bin1001100010010…
…00011001011011
312120111211100012
410301020121123
5130434111230
611534232135
71660614041
oct461103133
9176454305
1079988315
1141173450
122295564b
1313757c84
14a8a2391
157050395
hex4c4865b

79988315 has 16 divisors (see below), whose sum is σ = 110872800. Its totient is φ = 54750720.

The previous prime is 79988303. The next prime is 79988323. The reversal of 79988315 is 51388997.

It is not a de Polignac number, because 79988315 - 28 = 79988059 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41840 + ... + 43709.

It is an arithmetic number, because the mean of its divisors is an integer number (6929550).

Almost surely, 279988315 is an apocalyptic number.

79988315 is a deficient number, since it is larger than the sum of its proper divisors (30884485).

79988315 is a wasteful number, since it uses less digits than its factorization.

79988315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85582.

The product of its digits is 544320, while the sum is 50.

The square root of 79988315 is about 8943.6186747871. The cubic root of 79988315 is about 430.8659581771.

The spelling of 79988315 in words is "seventy-nine million, nine hundred eighty-eight thousand, three hundred fifteen".

Divisors: 1 5 11 17 55 85 187 935 85549 427745 941039 1454333 4705195 7271665 15997663 79988315