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131750332 = 22719247651
BaseRepresentation
bin1111101101001…
…01100110111100
3100011220121110221
413312211212330
5232212002312
621023511124
73156600520
oct766454674
9304817427
10131750332
1168407a7a
12381584a4
13213ac39c
14136d7d80
15b877207
hex7da59bc

131750332 has 24 divisors (see below), whose sum is σ = 277370240. Its totient is φ = 53492400.

The previous prime is 131750329. The next prime is 131750383. The reversal of 131750332 is 233057131.

It is a super-2 number, since 2×1317503322 = 34716299964220448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131750297 and 131750306.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 123294 + ... + 124357.

Almost surely, 2131750332 is an apocalyptic number.

It is an amenable number.

131750332 is an abundant number, since it is smaller than the sum of its proper divisors (145619908).

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

131750332 is a wasteful number, since it uses less digits than its factorization.

131750332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247681 (or 247679 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 131750332 is about 11478.2547453870. The cubic root of 131750332 is about 508.8431191042.

The spelling of 131750332 in words is "one hundred thirty-one million, seven hundred fifty thousand, three hundred thirty-two".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 247651 495302 990604 1733557 3467114 4705369 6934228 9410738 18821476 32937583 65875166 131750332