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131936804 = 2289370609
BaseRepresentation
bin1111101110100…
…11001000100100
3100012021002021022
413313103020210
5232233434204
621031510312
73161305256
oct767231044
9305232238
10131936804
116852508a
1238228398
132144621c
1413745cd6
15b8b25be
hex7dd3224

131936804 has 12 divisors (see below), whose sum is σ = 233484300. Its totient is φ = 65227008.

The previous prime is 131936789. The next prime is 131936807. The reversal of 131936804 is 408639131.

It can be written as a sum of positive squares in 2 ways, for example, as 73444900 + 58491904 = 8570^2 + 7648^2 .

It is not an unprimeable number, because it can be changed into a prime (131936807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184949 + ... + 185660.

It is an arithmetic number, because the mean of its divisors is an integer number (19457025).

Almost surely, 2131936804 is an apocalyptic number.

It is an amenable number.

131936804 is a deficient number, since it is larger than the sum of its proper divisors (101547496).

131936804 is a wasteful number, since it uses less digits than its factorization.

131936804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370702 (or 370700 counting only the distinct ones).

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

The square root of 131936804 is about 11486.3747109347. The cubic root of 131936804 is about 509.0830685674.

The spelling of 131936804 in words is "one hundred thirty-one million, nine hundred thirty-six thousand, eight hundred four".

Divisors: 1 2 4 89 178 356 370609 741218 1482436 32984201 65968402 131936804