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12428526374979 = 31113431303722133
BaseRepresentation
bin1011010011011011110111…
…1001100101000001000011
31122000011012101001110122220
42310312331321211001003
53112112110222444404
642233330341302123
72421634320054351
oct264667571450103
948004171043586
1012428526374979
113a619aa144a10
121488894404943
136c200b006a40
1430d7885d07d1
15168463da84d9
hexb4dbde65043

12428526374979 has 64 divisors (see below), whose sum is σ = 19520938579968. Its totient is φ = 6934292006400.

The previous prime is 12428526374951. The next prime is 12428526374983. The reversal of 12428526374979 is 97947362582421.

It is not a de Polignac number, because 12428526374979 - 217 = 12428526243907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12428526374909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 561527197 + ... + 561549329.

It is an arithmetic number, because the mean of its divisors is an integer number (305014665312).

Almost surely, 212428526374979 is an apocalyptic number.

12428526374979 is a deficient number, since it is larger than the sum of its proper divisors (7092412204989).

12428526374979 is a wasteful number, since it uses less digits than its factorization.

12428526374979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25628.

The product of its digits is 365783040, while the sum is 69.

The spelling of 12428526374979 in words is "twelve trillion, four hundred twenty-eight billion, five hundred twenty-six million, three hundred seventy-four thousand, nine hundred seventy-nine".

Divisors: 1 3 11 13 33 39 143 429 431 1293 3037 4741 5603 9111 14223 16809 22133 33407 39481 61633 66399 100221 118443 184899 243463 287729 434291 730389 863187 1302873 1308947 3165019 3926841 9495057 9539323 14398417 17016311 28617969 43195251 51048933 67217921 104932553 124011199 187179421 201653763 314797659 372033597 561538263 739397131 873832973 1364123189 2218191393 2621498919 4092369567 9612162703 28836488109 28970923951 86912771853 318680163461 376622011363 956040490383 1129866034089 4142842124993 12428526374979