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131934156 = 223371631823
BaseRepresentation
bin1111101110100…
…10011111001100
3100012020221122020
413313102133030
5232233343111
621031450140
73161264454
oct767223714
9305227566
10131934156
11685230a2
1238226950
1321444c63
1413744d64
15b8b1906
hex7dd27cc

131934156 has 48 divisors (see below), whose sum is σ = 318280704. Its totient is φ = 42503616.

The previous prime is 131934139. The next prime is 131934163. The reversal of 131934156 is 651439131.

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, 71461 + ... + 73283.

It is an arithmetic number, because the mean of its divisors is an integer number (6630848).

Almost surely, 2131934156 is an apocalyptic number.

It is an amenable number.

131934156 is an abundant number, since it is smaller than the sum of its proper divisors (186346548).

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

131934156 is a wasteful number, since it uses less digits than its factorization.

131934156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030 (or 2028 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 131934156 is about 11486.2594433523. The cubic root of 131934156 is about 509.0796627424.

The spelling of 131934156 in words is "one hundred thirty-one million, nine hundred thirty-four thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 12 37 74 111 148 163 222 326 444 489 652 978 1823 1956 3646 5469 6031 7292 10938 12062 18093 21876 24124 36186 67451 72372 134902 202353 269804 297149 404706 594298 809412 891447 1188596 1782894 3565788 10994513 21989026 32983539 43978052 65967078 131934156