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131942492 = 22112998693
BaseRepresentation
bin1111101110101…
…00100001011100
3100012021101001222
413313110201130
5232234124432
621031552512
73161330663
oct767244134
9305241058
10131942492
1168529390
123822b738
13214489a6
1413747dda
15b8b4112
hex7dd485c

131942492 has 12 divisors (see below), whose sum is σ = 251890296. Its totient is φ = 59973840.

The previous prime is 131942483. The next prime is 131942509. The reversal of 131942492 is 294249131.

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, 1499303 + ... + 1499390.

It is an arithmetic number, because the mean of its divisors is an integer number (20990858).

Almost surely, 2131942492 is an apocalyptic number.

It is an amenable number.

131942492 is a deficient number, since it is larger than the sum of its proper divisors (119947804).

131942492 is a wasteful number, since it uses less digits than its factorization.

131942492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998708 (or 2998706 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 131942492 is about 11486.6223059697. The cubic root of 131942492 is about 509.0903842488.

The spelling of 131942492 in words is "one hundred thirty-one million, nine hundred forty-two thousand, four hundred ninety-two".

Divisors: 1 2 4 11 22 44 2998693 5997386 11994772 32985623 65971246 131942492