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79823768132 = 22109766923873
BaseRepresentation
bin100101001010111011…
…1100000101001000100
321122001001111120022202
41022111313200221010
52301434341040012
6100400500214032
75524051556033
oct1122567405104
9248031446282
1079823768132
1130942488509
121357899a318
1376b17800c4
143c135c271a
152122cabcc2
hex1295de0a44

79823768132 has 24 divisors (see below), whose sum is σ = 140997456600. Its totient is φ = 39538907136.

The previous prime is 79823768131. The next prime is 79823768161. The reversal of 79823768132 is 23186732897.

It can be written as a sum of positive squares in 4 ways, for example, as 22447230976 + 57376537156 = 149824^2 + 239534^2 .

It is not an unprimeable number, because it can be changed into a prime (79823768131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3331748 + ... + 3355620.

It is an arithmetic number, because the mean of its divisors is an integer number (5874894025).

Almost surely, 279823768132 is an apocalyptic number.

It is an amenable number.

79823768132 is a deficient number, since it is larger than the sum of its proper divisors (61173688468).

79823768132 is a wasteful number, since it uses less digits than its factorization.

79823768132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31655 (or 31653 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 56.

The spelling of 79823768132 in words is "seventy-nine billion, eight hundred twenty-three million, seven hundred sixty-eight thousand, one hundred thirty-two".

Divisors: 1 2 4 109 218 436 7669 15338 23873 30676 47746 95492 835921 1671842 2602157 3343684 5204314 10408628 183082037 366164074 732328148 19955942033 39911884066 79823768132