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131576090 = 25173124967
BaseRepresentation
bin1111101011110…
…11000100011010
3100011120202110112
413311323010122
5232140413330
621020044322
73155243522
oct765730432
9304522415
10131576090
11682a9078
12380936a2
132134ac99
1413690682
15b840795
hex7d7b11a

131576090 has 32 divisors (see below), whose sum is σ = 258868224. Its totient is φ = 47934720.

The previous prime is 131576063. The next prime is 131576099. The reversal of 131576090 is 90675131.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131576099) 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, 7214 + ... + 17753.

It is an arithmetic number, because the mean of its divisors is an integer number (8089632).

Almost surely, 2131576090 is an apocalyptic number.

131576090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131576090 is a deficient number, since it is larger than the sum of its proper divisors (127292134).

131576090 is a wasteful number, since it uses less digits than its factorization.

131576090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25022.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 131576090 is about 11470.6621430500. The cubic root of 131576090 is about 508.6187023210.

The spelling of 131576090 in words is "one hundred thirty-one million, five hundred seventy-six thousand, ninety".

Divisors: 1 2 5 10 17 31 34 62 85 155 170 310 527 1054 2635 5270 24967 49934 124835 249670 424439 773977 848878 1547954 2122195 3869885 4244390 7739770 13157609 26315218 65788045 131576090