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131283074 = 2135049349
BaseRepresentation
bin1111101001100…
…11100010000010
3100011000212112002
413310303202002
5232102024244
621005504002
73152613326
oct764634202
9304025462
10131283074
1168118a0a
1237b72002
13212777c0
1413615986
15b7d3a4e
hex7d33882

131283074 has 8 divisors (see below), whose sum is σ = 212072700. Its totient is φ = 60592176.

The previous prime is 131283073. The next prime is 131283121. The reversal of 131283074 is 470382131.

It can be written as a sum of positive squares in 2 ways, for example, as 131217025 + 66049 = 11455^2 + 257^2 .

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 (131283071) 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, 2524649 + ... + 2524700.

Almost surely, 2131283074 is an apocalyptic number.

131283074 is a deficient number, since it is larger than the sum of its proper divisors (80789626).

131283074 is a wasteful number, since it uses less digits than its factorization.

131283074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5049364.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 131283074 is about 11457.8826141657. The cubic root of 131283074 is about 508.2408621786.

The spelling of 131283074 in words is "one hundred thirty-one million, two hundred eighty-three thousand, seventy-four".

Divisors: 1 2 13 26 5049349 10098698 65641537 131283074