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131452849 = 11194314627
BaseRepresentation
bin1111101010111…
…00111110110001
3100011100111102001
413311130332301
5232122442344
621013254001
73154221313
oct765347661
9304314361
10131452849
1168224520
1238034301
1321306b68
141365b7b3
15b818ed4
hex7d5cfb1

131452849 has 16 divisors (see below), whose sum is σ = 154471680. Its totient is φ = 110572560.

The previous prime is 131452829. The next prime is 131452873. The reversal of 131452849 is 948254131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131452849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131452819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1674 + ... + 16300.

It is an arithmetic number, because the mean of its divisors is an integer number (9654480).

Almost surely, 2131452849 is an apocalyptic number.

131452849 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

131452849 is a deficient number, since it is larger than the sum of its proper divisors (23018831).

131452849 is a wasteful number, since it uses less digits than its factorization.

131452849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14700.

The product of its digits is 34560, while the sum is 37.

The square root of 131452849 is about 11465.2888755583. The cubic root of 131452849 is about 508.4598531504.

The spelling of 131452849 in words is "one hundred thirty-one million, four hundred fifty-two thousand, eight hundred forty-nine".

Divisors: 1 11 19 43 209 473 817 8987 14627 160897 277913 628961 3057043 6918571 11950259 131452849