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131361055 = 5717532141
BaseRepresentation
bin1111101010001…
…10100100011111
3100011011211111021
413311012210133
5232112023210
621011305011
73153356560
oct765064437
9304154437
10131361055
1168171561
1237bab167
13212a4147
1413636167
15b7ebbda
hex7d4691f

131361055 has 16 divisors (see below), whose sum is σ = 180339264. Its totient is φ = 89982720.

The previous prime is 131361019. The next prime is 131361059. The reversal of 131361055 is 550163131.

It is not a de Polignac number, because 131361055 - 29 = 131360543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131361059) 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, 60285 + ... + 62425.

It is an arithmetic number, because the mean of its divisors is an integer number (11271204).

Almost surely, 2131361055 is an apocalyptic number.

131361055 is a deficient number, since it is larger than the sum of its proper divisors (48978209).

131361055 is a wasteful number, since it uses less digits than its factorization.

131361055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 131361055 is about 11461.2850501155. The cubic root of 131361055 is about 508.3414724726.

The spelling of 131361055 in words is "one hundred thirty-one million, three hundred sixty-one thousand, fifty-five".

Divisors: 1 5 7 35 1753 2141 8765 10705 12271 14987 61355 74935 3753173 18765865 26272211 131361055