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79105945982 = 2728171927967
BaseRepresentation
bin100100110101100010…
…1001111000101111110
321120012000210102110012
41021223011033011332
52244002110232412
6100201334543222
75500214306060
oct1115305170576
9246160712405
1079105945982
1130604276068
12133b8507b12
1375c8b4097b
143b86129730
1520cec68c22
hex126b14f17e

79105945982 has 32 divisors (see below), whose sum is σ = 136286945280. Its totient is φ = 33733707840.

The previous prime is 79105945981. The next prime is 79105945993. The reversal of 79105945982 is 28954950197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79105945981) 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, 2814563 + ... + 2842529.

It is an arithmetic number, because the mean of its divisors is an integer number (4258967040).

Almost surely, 279105945982 is an apocalyptic number.

79105945982 is a deficient number, since it is larger than the sum of its proper divisors (57180999298).

79105945982 is a wasteful number, since it uses less digits than its factorization.

79105945982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28976.

The product of its (nonzero) digits is 8164800, while the sum is 59.

The spelling of 79105945982 in words is "seventy-nine billion, one hundred five million, nine hundred forty-five thousand, nine hundred eighty-two".

Divisors: 1 2 7 14 281 562 719 1438 1967 3934 5033 10066 27967 55934 195769 202039 391538 404078 1414273 2828546 7858727 15717454 20108273 40216546 55011089 110022178 140757911 281515822 5650424713 11300849426 39552972991 79105945982