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131374090 = 2513137409
BaseRepresentation
bin1111101010010…
…01110000001010
3100011012111101001
413311021300022
5232112432330
621011445214
73153442561
oct765116012
9304174331
10131374090
1168180331
1237bb680a
13212aa063
141363abd8
15b8009ca
hex7d49c0a

131374090 has 8 divisors (see below), whose sum is σ = 236473380. Its totient is φ = 52549632.

The previous prime is 131374051. The next prime is 131374097. The reversal of 131374090 is 90473131.

It can be written as a sum of positive squares in 2 ways, for example, as 128391561 + 2982529 = 11331^2 + 1727^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (131374097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6568695 + ... + 6568714.

Almost surely, 2131374090 is an apocalyptic number.

131374090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131374090 is a deficient number, since it is larger than the sum of its proper divisors (105099290).

131374090 is a wasteful number, since it uses less digits than its factorization.

131374090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13137416.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 131374090 is about 11461.8536895216. The cubic root of 131374090 is about 508.3582862128.

The spelling of 131374090 in words is "one hundred thirty-one million, three hundred seventy-four thousand, ninety".

Divisors: 1 2 5 10 13137409 26274818 65687045 131374090