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12132053525 = 522957164113
BaseRepresentation
bin10110100110010000…
…00111001000010101
31011022111121011201202
423103020013020111
5144321301203100
65323504002245
7606433516304
oct132310071025
934274534652
1012132053525
115166256419
122427000385
1311b461bbc7
1483139443b
154b01577d5
hex2d3207215

12132053525 has 12 divisors (see below), whose sum is σ = 15048925572. Its totient is φ = 9702301440.

The previous prime is 12132053513. The next prime is 12132053561. The reversal of 12132053525 is 52535023121.

It can be written as a sum of positive squares in 6 ways, for example, as 747803716 + 11384249809 = 27346^2 + 106697^2 .

It is not a de Polignac number, because 12132053525 - 218 = 12131791381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8132 + ... + 155981.

It is an arithmetic number, because the mean of its divisors is an integer number (1254077131).

Almost surely, 212132053525 is an apocalyptic number.

It is an amenable number.

12132053525 is a deficient number, since it is larger than the sum of its proper divisors (2916872047).

12132053525 is a wasteful number, since it uses less digits than its factorization.

12132053525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167080 (or 167075 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 12132053525 its reverse (52535023121), we get a palindrome (64667076646).

The spelling of 12132053525 in words is "twelve billion, one hundred thirty-two million, fifty-three thousand, five hundred twenty-five".

Divisors: 1 5 25 2957 14785 73925 164113 820565 4102825 485282141 2426410705 12132053525