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131199266 = 2116789009
BaseRepresentation
bin1111101000111…
…11000100100010
3100010212121120002
413310133010202
5232041334031
621004020002
73152114102
oct764370442
9303777502
10131199266
1168070a50
1237b31602
1321248603
14135d3202
15b7b8ccb
hex7d1f122

131199266 has 16 divisors (see below), whose sum is σ = 217896480. Its totient is φ = 58745280.

The previous prime is 131199253. The next prime is 131199281. The reversal of 131199266 is 662991131.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43031 + ... + 45978.

It is an arithmetic number, because the mean of its divisors is an integer number (13618530).

Almost surely, 2131199266 is an apocalyptic number.

131199266 is a deficient number, since it is larger than the sum of its proper divisors (86697214).

131199266 is a wasteful number, since it uses less digits than its factorization.

131199266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89089.

The product of its digits is 17496, while the sum is 38.

The square root of 131199266 is about 11454.2248100865. The cubic root of 131199266 is about 508.1326895206.

The spelling of 131199266 in words is "one hundred thirty-one million, one hundred ninety-nine thousand, two hundred sixty-six".

Divisors: 1 2 11 22 67 134 737 1474 89009 178018 979099 1958198 5963603 11927206 65599633 131199266