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131641396 = 2257757037
BaseRepresentation
bin1111101100010…
…11000000110100
3100011201002001021
413312023000310
5232200011041
621021310524
73155635105
oct766130064
9304632037
10131641396
1168343147
1238105444
1321371923
14136aa3ac
15b854cd1
hex7d8b034

131641396 has 12 divisors (see below), whose sum is σ = 230775748. Its totient is φ = 65705472.

The previous prime is 131641379. The next prime is 131641427. The reversal of 131641396 is 693146131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 77088400 + 54552996 = 8780^2 + 7386^2 .

It is a congruent number.

It is an unprimeable number.

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, 26211 + ... + 30826.

Almost surely, 2131641396 is an apocalyptic number.

It is an amenable number.

131641396 is a deficient number, since it is larger than the sum of its proper divisors (99134352).

131641396 is a wasteful number, since it uses less digits than its factorization.

131641396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57618 (or 57616 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 131641396 is about 11473.5084433664. The cubic root of 131641396 is about 508.7028370577.

The spelling of 131641396 in words is "one hundred thirty-one million, six hundred forty-one thousand, three hundred ninety-six".

Divisors: 1 2 4 577 1154 2308 57037 114074 228148 32910349 65820698 131641396