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79968792 = 23323277523
BaseRepresentation
bin1001100010000…
…11101000011000
312120110211120010
410301003220120
5130433000132
611534001520
71660503111
oct461035030
9176424503
1079968792
114115a812
12229462a0
131374c117
14a899208
1570496cc
hex4c43a18

79968792 has 64 divisors (see below), whose sum is σ = 209767680. Its totient is φ = 25356672.

The previous prime is 79968781. The next prime is 79968797. The reversal of 79968792 is 29786997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79968797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152643 + ... + 153165.

It is an arithmetic number, because the mean of its divisors is an integer number (3277620).

Almost surely, 279968792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79968792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104883840).

79968792 is an abundant number, since it is smaller than the sum of its proper divisors (129798888).

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

79968792 is a wasteful number, since it uses less digits than its factorization.

79968792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832 (or 828 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 57.

The square root of 79968792 is about 8942.5271595897. The cubic root of 79968792 is about 430.8309010542.

The spelling of 79968792 in words is "seventy-nine million, nine hundred sixty-eight thousand, seven hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 276 277 523 552 554 831 1046 1108 1569 1662 2092 2216 3138 3324 4184 6276 6371 6648 12029 12552 12742 19113 24058 25484 36087 38226 48116 50968 72174 76452 96232 144348 144871 152904 288696 289742 434613 579484 869226 1158968 1738452 3332033 3476904 6664066 9996099 13328132 19992198 26656264 39984396 79968792