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131886075 = 3529711811
BaseRepresentation
bin1111101110001…
…10101111111011
3100012011111200110
413313012233323
5232230323300
621030435403
73161004336
oct767065773
9305144613
10131886075
116849aa62
1238202b63
13214290c9
141373161d
15b8a2550
hex7dc6bfb

131886075 has 24 divisors (see below), whose sum is σ = 218396736. Its totient is φ = 70228000.

The previous prime is 131886067. The next prime is 131886077. The reversal of 131886075 is 570688131.

It is not a de Polignac number, because 131886075 - 23 = 131886067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131886077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71920 + ... + 73730.

It is an arithmetic number, because the mean of its divisors is an integer number (9099864).

Almost surely, 2131886075 is an apocalyptic number.

131886075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131886075 is a deficient number, since it is larger than the sum of its proper divisors (86510661).

131886075 is a wasteful number, since it uses less digits than its factorization.

131886075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795 (or 2790 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 131886075 is about 11484.1662736134. The cubic root of 131886075 is about 509.0178136251.

The spelling of 131886075 in words is "one hundred thirty-one million, eight hundred eighty-six thousand, seventy-five".

Divisors: 1 3 5 15 25 75 971 1811 2913 4855 5433 9055 14565 24275 27165 45275 72825 135825 1758481 5275443 8792405 26377215 43962025 131886075