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131264633 = 1731249079
BaseRepresentation
bin1111101001011…
…11000001111001
3100010222221020002
413310233001321
5232100432013
621005242345
73152505503
oct764570171
9303887202
10131264633
1168106075
1237b633b5
132126c2a6
141360cd73
15b7cd358
hex7d2f079

131264633 has 8 divisors (see below), whose sum is σ = 143470080. Its totient is φ = 119557440.

The previous prime is 131264629. The next prime is 131264659. The reversal of 131264633 is 336462131.

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

It is a cyclic number.

It is not a de Polignac number, because 131264633 - 22 = 131264629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131264596 and 131264605.

It is not an unprimeable number, because it can be changed into a prime (131264603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124013 + ... + 125066.

It is an arithmetic number, because the mean of its divisors is an integer number (17933760).

Almost surely, 2131264633 is an apocalyptic number.

It is an amenable number.

131264633 is a deficient number, since it is larger than the sum of its proper divisors (12205447).

131264633 is a wasteful number, since it uses less digits than its factorization.

131264633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249127.

The product of its digits is 7776, while the sum is 29.

The square root of 131264633 is about 11457.0778560678. The cubic root of 131264633 is about 508.2170639632.

The spelling of 131264633 in words is "one hundred thirty-one million, two hundred sixty-four thousand, six hundred thirty-three".

Divisors: 1 17 31 527 249079 4234343 7721449 131264633