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131520252512 = 25113343111767
BaseRepresentation
bin111101001111100110…
…1111100101001100000
3110120110212120002000102
41322133031330221200
54123323141040022
6140230343241532
712334123462265
oct1723715745140
9416425502012
10131520252512
1150860832370
12215a5a492a8
13c52cb3812c
14651936126c
15364b55da92
hex1e9f37ca60

131520252512 has 48 divisors (see below), whose sum is σ = 282556657152. Its totient is φ = 59763515520.

The previous prime is 131520252511. The next prime is 131520252529. The reversal of 131520252512 is 215252025131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131520252511) 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, 1120853 + ... + 1232619.

It is an arithmetic number, because the mean of its divisors is an integer number (5886597024).

Almost surely, 2131520252512 is an apocalyptic number.

It is an amenable number.

131520252512 is an abundant number, since it is smaller than the sum of its proper divisors (151036404640).

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

131520252512 is a wasteful number, since it uses less digits than its factorization.

131520252512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115131 (or 115123 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 131520252512 its reverse (215252025131), we get a palindrome (346772277643).

The spelling of 131520252512 in words is "one hundred thirty-one billion, five hundred twenty million, two hundred fifty-two thousand, five hundred twelve".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 3343 6686 13372 26744 36773 53488 73546 106976 111767 147092 223534 294184 447068 588368 894136 1176736 1229437 1788272 2458874 3576544 4917748 9835496 19670992 39341984 373637081 747274162 1494548324 2989096648 4110007891 5978193296 8220015782 11956386592 16440031564 32880063128 65760126256 131520252512