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131463572 = 22241136373
BaseRepresentation
bin1111101010111…
…11100110010100
3100011101001010012
413311133212110
5232123313242
621013415352
73154264502
oct765374624
9304331105
10131463572
1168231589
123803a558
132130b9c6
1413661672
15b81c282
hex7d5f994

131463572 has 12 divisors (see below), whose sum is σ = 231017556. Its totient is φ = 65458560.

The previous prime is 131463571. The next prime is 131463593. The reversal of 131463572 is 275364131.

It can be written as a sum of positive squares in 2 ways, for example, as 105596176 + 25867396 = 10276^2 + 5086^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131463571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67223 + ... + 69150.

It is an arithmetic number, because the mean of its divisors is an integer number (19251463).

Almost surely, 2131463572 is an apocalyptic number.

It is an amenable number.

131463572 is a deficient number, since it is larger than the sum of its proper divisors (99553984).

131463572 is a wasteful number, since it uses less digits than its factorization.

131463572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136618 (or 136616 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 131463572 is about 11465.7564948851. The cubic root of 131463572 is about 508.4736783022.

The spelling of 131463572 in words is "one hundred thirty-one million, four hundred sixty-three thousand, five hundred seventy-two".

Divisors: 1 2 4 241 482 964 136373 272746 545492 32865893 65731786 131463572