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19611682992 = 24321112381113
BaseRepresentation
bin10010010000111100…
…101000100010110000
31212121202211201110100
4102100330220202300
5310131042323432
613002014232400
71262665361226
oct222074504260
955552751410
1019611682992
118354313780
123973ab5700
131b070c6c65
14d408c2b16
1579bb1407c
hex490f288b0

19611682992 has 60 divisors (see below), whose sum is σ = 59875067304. Its totient is φ = 5942933760.

The previous prime is 19611682957. The next prime is 19611683051. The reversal of 19611682992 is 29928611691.

19611682992 is a `hidden beast` number, since 19 + 611 + 6 + 8 + 2 + 9 + 9 + 2 = 666.

It is a nude number because it is divisible by every one of its digits.

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 11 ways as a sum of consecutive naturals, for example, 6188973 + ... + 6192140.

Almost surely, 219611682992 is an apocalyptic number.

19611682992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19611682992 is an abundant number, since it is smaller than the sum of its proper divisors (40263384312).

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

19611682992 is a wasteful number, since it uses less digits than its factorization.

19611682992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12381138 (or 12381129 counting only the distinct ones).

The product of its digits is 839808, while the sum is 54.

The spelling of 19611682992 in words is "nineteen billion, six hundred eleven million, six hundred eighty-two thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 33 36 44 48 66 72 88 99 132 144 176 198 264 396 528 792 1584 12381113 24762226 37143339 49524452 74286678 99048904 111430017 136192243 148573356 198097808 222860034 272384486 297146712 408576729 445720068 544768972 594293424 817153458 891440136 1089537944 1225730187 1634306916 1782880272 2179075888 2451460374 3268613832 4902920748 6537227664 9805841496 19611682992