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131994304 = 2613158647
BaseRepresentation
bin1111101111000…
…01001011000000
3100012101000010221
413313201023000
5232242304204
621033032424
73161635021
oct767411300
9305330127
10131994304
1168564302
1238255714
1321466450
141375cc48
15b8c4654
hex7de12c0

131994304 has 28 divisors (see below), whose sum is σ = 282076144. Its totient is φ = 60920064.

The previous prime is 131994257. The next prime is 131994323. The reversal of 131994304 is 403499131.

It is a self number, because there is not a number n which added to its sum of digits gives 131994304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78492 + ... + 80155.

It is an arithmetic number, because the mean of its divisors is an integer number (10074148).

Almost surely, 2131994304 is an apocalyptic number.

It is an amenable number.

131994304 is an abundant number, since it is smaller than the sum of its proper divisors (150081840).

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

131994304 is a wasteful number, since it uses less digits than its factorization.

131994304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158672 (or 158662 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 131994304 is about 11488.8774038197. The cubic root of 131994304 is about 509.1570131231.

The spelling of 131994304 in words is "one hundred thirty-one million, nine hundred ninety-four thousand, three hundred four".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 208 416 832 158647 317294 634588 1269176 2062411 2538352 4124822 5076704 8249644 10153408 16499288 32998576 65997152 131994304