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131755525 = 52111728183
BaseRepresentation
bin1111101101001…
…10111000000101
3100011220212121021
413312212320011
5232212134100
621023551141
73156621616
oct766467005
9304825537
10131755525
1168410970
123815b4b1
13213b1865
14136d9c0d
15b878a1a
hex7da6e05

131755525 has 24 divisors (see below), whose sum is σ = 188720064. Its totient is φ = 90182400.

The previous prime is 131755517. The next prime is 131755537. The reversal of 131755525 is 525557131.

It is not a de Polignac number, because 131755525 - 23 = 131755517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9417 + ... + 18766.

It is an arithmetic number, because the mean of its divisors is an integer number (7863336).

Almost surely, 2131755525 is an apocalyptic number.

It is an amenable number.

131755525 is a deficient number, since it is larger than the sum of its proper divisors (56964539).

131755525 is a wasteful number, since it uses less digits than its factorization.

131755525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28221 (or 28216 counting only the distinct ones).

The product of its digits is 26250, while the sum is 34.

The square root of 131755525 is about 11478.4809535060. The cubic root of 131755525 is about 508.8498044450.

The spelling of 131755525 in words is "one hundred thirty-one million, seven hundred fifty-five thousand, five hundred twenty-five".

Divisors: 1 5 11 17 25 55 85 187 275 425 935 4675 28183 140915 310013 479111 704575 1550065 2395555 5270221 7750325 11977775 26351105 131755525