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51104911830 = 2357243356723
BaseRepresentation
bin101111100110000101…
…110001000111010110
311212220120220111201020
4233212011301013112
51314130324134310
635251031342010
73456266404020
oct574605610726
9155816814636
1051104911830
111a745432725
129aa2b21906
134a859502cb
14268b38b010
1514e189b170
hexbe61711d6

51104911830 has 32 divisors (see below), whose sum is σ = 140173473024. Its totient is φ = 11681122656.

The previous prime is 51104911789. The next prime is 51104911843. The reversal of 51104911830 is 3811940115.

It is a super-2 number, since 2×511049118302 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51104911791 and 51104911800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121678152 + ... + 121678571.

It is an arithmetic number, because the mean of its divisors is an integer number (4380421032).

Almost surely, 251104911830 is an apocalyptic number.

51104911830 is an abundant number, since it is smaller than the sum of its proper divisors (89068561194).

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

51104911830 is a wasteful number, since it uses less digits than its factorization.

51104911830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243356740.

The product of its (nonzero) digits is 4320, while the sum is 33.

The spelling of 51104911830 in words is "fifty-one billion, one hundred four million, nine hundred eleven thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 243356723 486713446 730070169 1216783615 1460140338 1703497061 2433567230 3406994122 3650350845 5110491183 7300701690 8517485305 10220982366 17034970610 25552455915 51104911830