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131424568 = 23111493461
BaseRepresentation
bin1111101010101…
…10000100111000
3100011022001121121
413311112010320
5232121041233
621012515024
73154043002
oct765260470
9304261547
10131424568
1168205250
123801ba74
13212c7022
1413651372
15b81092d
hex7d56138

131424568 has 16 divisors (see below), whose sum is σ = 268823160. Its totient is φ = 59738400.

The previous prime is 131424563. The next prime is 131424581. The reversal of 131424568 is 865424131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131424563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746643 + ... + 746818.

Almost surely, 2131424568 is an apocalyptic number.

It is an amenable number.

131424568 is an abundant number, since it is smaller than the sum of its proper divisors (137398592).

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

131424568 is a wasteful number, since it uses less digits than its factorization.

131424568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493478 (or 1493474 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 131424568 is about 11464.0554778839. The cubic root of 131424568 is about 508.4233868824.

Adding to 131424568 its reverse (865424131), we get a palindrome (996848699).

The spelling of 131424568 in words is "one hundred thirty-one million, four hundred twenty-four thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 11 22 44 88 1493461 2986922 5973844 11947688 16428071 32856142 65712284 131424568