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12530536152 = 2332377219649
BaseRepresentation
bin10111010101110000…
…01100111011011000
31012100021102012010120
423222320030323120
5201130304124102
65431220513240
7622342541241
oct135270147330
935307365116
1012530536152
115350185302
12251854b820
13124904b944
1486c281cc8
154d511b6bc
hex2eae0ced8

12530536152 has 32 divisors (see below), whose sum is σ = 31339662000. Its totient is φ = 4175069184.

The previous prime is 12530536147. The next prime is 12530536163. The reversal of 12530536152 is 25163503521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52777 + ... + 166872.

Almost surely, 212530536152 is an apocalyptic number.

12530536152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12530536152 is an abundant number, since it is smaller than the sum of its proper divisors (18809125848).

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

12530536152 is a wasteful number, since it uses less digits than its factorization.

12530536152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222035 (or 222031 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

The spelling of 12530536152 in words is "twelve billion, five hundred thirty million, five hundred thirty-six thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 2377 4754 7131 9508 14262 19016 28524 57048 219649 439298 658947 878596 1317894 1757192 2635788 5271576 522105673 1044211346 1566317019 2088422692 3132634038 4176845384 6265268076 12530536152