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131872472 = 2322772617
BaseRepresentation
bin1111101110000…
…11011011011000
3100012010211000122
413313003123120
5232224404342
621030252412
73160616564
oct767033330
9305124018
10131872472
1168490816
12381b7108
1321422b64
141372a6a4
15b89d4d2
hex7dc36d8

131872472 has 16 divisors (see below), whose sum is σ = 248353560. Its totient is φ = 65644864.

The previous prime is 131872439. The next prime is 131872487. The reversal of 131872472 is 274278131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34493 + ... + 38124.

Almost surely, 2131872472 is an apocalyptic number.

It is an amenable number.

131872472 is a deficient number, since it is larger than the sum of its proper divisors (116481088).

131872472 is a wasteful number, since it uses less digits than its factorization.

131872472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72850 (or 72846 counting only the distinct ones).

The product of its digits is 18816, while the sum is 35.

The square root of 131872472 is about 11483.5740081213. The cubic root of 131872472 is about 509.0003126433. Note that the first 3 decimals are identical.

The spelling of 131872472 in words is "one hundred thirty-one million, eight hundred seventy-two thousand, four hundred seventy-two".

Divisors: 1 2 4 8 227 454 908 1816 72617 145234 290468 580936 16484059 32968118 65936236 131872472