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79944372 = 22329712287
BaseRepresentation
bin1001100001111…
…01101010110100
312120102121001200
410300331222310
5130431204442
611533252500
71660341654
oct460755264
9176377050
1079944372
1141143432
1222934130
1313740c81
14a890364
15704234c
hex4c3dab4

79944372 has 36 divisors (see below), whose sum is σ = 202378176. Its totient is φ = 26609040.

The previous prime is 79944349. The next prime is 79944391. The reversal of 79944372 is 27344997.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×799443722 = 12782205228948768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33813 + ... + 36099.

It is an arithmetic number, because the mean of its divisors is an integer number (5621616).

Almost surely, 279944372 is an apocalyptic number.

It is an amenable number.

79944372 is an abundant number, since it is smaller than the sum of its proper divisors (122433804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79944372 is a wasteful number, since it uses less digits than its factorization.

79944372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3268 (or 3263 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 79944372 is about 8941.1616694924. The cubic root of 79944372 is about 430.7870424379.

The spelling of 79944372 in words is "seventy-nine million, nine hundred forty-four thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 971 1942 2287 2913 3884 4574 5826 6861 8739 9148 11652 13722 17478 20583 27444 34956 41166 82332 2220677 4441354 6662031 8882708 13324062 19986093 26648124 39972186 79944372