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131165054 = 2230928403
BaseRepresentation
bin1111101000101…
…10101101111110
3100010210212121222
413310112231332
5232034240204
621003153342
73151612256
oct764265576
9303725558
10131165054
1168048279
1237b15852
1321235b77
14135c4966
15b7adabe
hex7d16b7e

131165054 has 8 divisors (see below), whose sum is σ = 196839720. Its totient is φ = 65551816.

The previous prime is 131164951. The next prime is 131165059. The reversal of 131165054 is 450561131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131165059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9584 + ... + 18819.

It is an arithmetic number, because the mean of its divisors is an integer number (24604965).

Almost surely, 2131165054 is an apocalyptic number.

131165054 is a deficient number, since it is larger than the sum of its proper divisors (65674666).

131165054 is a wasteful number, since it uses less digits than its factorization.

131165054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30714.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 131165054 is about 11452.7312899587. The cubic root of 131165054 is about 508.0885181687.

The spelling of 131165054 in words is "one hundred thirty-one million, one hundred sixty-five thousand, fifty-four".

Divisors: 1 2 2309 4618 28403 56806 65582527 131165054