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131264352 = 25322631733
BaseRepresentation
bin1111101001011…
…10111101100000
3100010222220211200
413310232331200
5232100424402
621005241200
73152504622
oct764567540
9303886750
10131264352
116810593a
1237b63200
132126c11b
141360cc12
15b7cd21c
hex7d2ef60

131264352 has 72 divisors (see below), whose sum is σ = 374918544. Its totient is φ = 43563264.

The previous prime is 131264299. The next prime is 131264363. The reversal of 131264352 is 253462131.

131264352 is a `hidden beast` number, since 1 + 3 + 12 + 643 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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, 74878 + ... + 76610.

It is an arithmetic number, because the mean of its divisors is an integer number (5207202).

Almost surely, 2131264352 is an apocalyptic number.

131264352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131264352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187459272).

131264352 is an abundant number, since it is smaller than the sum of its proper divisors (243654192).

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

131264352 is a wasteful number, since it uses less digits than its factorization.

131264352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012 (or 2001 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 131264352 is about 11457.0655928994. The cubic root of 131264352 is about 508.2167013139.

The spelling of 131264352 in words is "one hundred thirty-one million, two hundred sixty-four thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 263 288 526 789 1052 1578 1733 2104 2367 3156 3466 4208 4734 5199 6312 6932 8416 9468 10398 12624 13864 15597 18936 20796 25248 27728 31194 37872 41592 55456 62388 75744 83184 124776 166368 249552 455779 499104 911558 1367337 1823116 2734674 3646232 4102011 5469348 7292464 8204022 10938696 14584928 16408044 21877392 32816088 43754784 65632176 131264352