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131194092 = 22310932841
BaseRepresentation
bin1111101000111…
…01110011101100
3100010212100110110
413310131303230
5232041202332
621003540020
73152063031
oct764356354
9303770413
10131194092
1168068077
1237b2a610
1321246153
14135d1388
15b7b74cc
hex7d1dcec

131194092 has 12 divisors (see below), whose sum is σ = 306119576. Its totient is φ = 43731360.

The previous prime is 131194079. The next prime is 131194097. The reversal of 131194092 is 290491131.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (131194097) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5466409 + ... + 5466432.

Almost surely, 2131194092 is an apocalyptic number.

131194092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131194092 is an abundant number, since it is smaller than the sum of its proper divisors (174925484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131194092 is a wasteful number, since it uses less digits than its factorization.

131194092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10932848 (or 10932846 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 131194092 is about 11453.9989523310. The cubic root of 131194092 is about 508.1260098260.

The spelling of 131194092 in words is "one hundred thirty-one million, one hundred ninety-four thousand, ninety-two".

Divisors: 1 2 3 4 6 12 10932841 21865682 32798523 43731364 65597046 131194092