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131890346 = 2789151701
BaseRepresentation
bin1111101110001…
…11110010101010
3100012011201112122
413313013302222
5232230442341
621030511242
73161022650
oct767076252
9305151478
10131890346
11684a3195
1238205522
132142b033
1413732dd0
15b8a394b
hex7dc7caa

131890346 has 32 divisors (see below), whose sum is σ = 230480640. Its totient is φ = 55440000.

The previous prime is 131890333. The next prime is 131890351. The reversal of 131890346 is 643098131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187796 + ... + 188496.

It is an arithmetic number, because the mean of its divisors is an integer number (7202520).

Almost surely, 2131890346 is an apocalyptic number.

131890346 is a deficient number, since it is larger than the sum of its proper divisors (98590294).

131890346 is a wasteful number, since it uses less digits than its factorization.

131890346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 131890346 is about 11484.3522237869. The cubic root of 131890346 is about 509.0233082452.

The spelling of 131890346 in words is "one hundred thirty-one million, eight hundred ninety thousand, three hundred forty-six".

Divisors: 1 2 7 14 89 151 178 302 623 701 1057 1246 1402 2114 4907 9814 13439 26878 62389 94073 105851 124778 188146 211702 436723 740957 873446 1481914 9420739 18841478 65945173 131890346