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130931996 = 221313718379
BaseRepresentation
bin1111100110111…
…01110100011100
3100010101000221012
413303131310130
5232004310441
620554154352
73146621636
oct763356434
9303330835
10130931996
11679a9168
1237a229b8
1321183a70
1413563a56
15b7649eb
hex7cddd1c

130931996 has 24 divisors (see below), whose sum is σ = 248571120. Its totient is φ = 59985792.

The previous prime is 130931987. The next prime is 130932017. The reversal of 130931996 is 699139031.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2066 + ... + 16313.

It is an arithmetic number, because the mean of its divisors is an integer number (10357130).

Almost surely, 2130931996 is an apocalyptic number.

It is an amenable number.

130931996 is a deficient number, since it is larger than the sum of its proper divisors (117639124).

130931996 is a wasteful number, since it uses less digits than its factorization.

130931996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18533 (or 18531 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 41.

The square root of 130931996 is about 11442.5519880838. The cubic root of 130931996 is about 507.7874107892.

The spelling of 130931996 in words is "one hundred thirty million, nine hundred thirty-one thousand, nine hundred ninety-six".

Divisors: 1 2 4 13 26 52 137 274 548 1781 3562 7124 18379 36758 73516 238927 477854 955708 2517923 5035846 10071692 32732999 65465998 130931996