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51868092 = 22314929009
BaseRepresentation
bin1100010111011…
…1000110111100
310121121011122110
43011313012330
5101234234332
65051414020
71166604633
oct305670674
9117534573
1051868092
11273072a1
1215454310
13a9907a3
146c6251a
1548484cc
hex31771bc

51868092 has 24 divisors (see below), whose sum is σ = 121842000. Its totient is φ = 17172736.

The previous prime is 51868073. The next prime is 51868099. The reversal of 51868092 is 29086815.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51868092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51868099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12717 + ... + 16292.

It is an arithmetic number, because the mean of its divisors is an integer number (5076750).

Almost surely, 251868092 is an apocalyptic number.

It is an amenable number.

51868092 is an abundant number, since it is smaller than the sum of its proper divisors (69973908).

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

51868092 is a wasteful number, since it uses less digits than its factorization.

51868092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29165 (or 29163 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 51868092 is about 7201.9505691167. The cubic root of 51868092 is about 372.9352406938.

The spelling of 51868092 in words is "fifty-one million, eight hundred sixty-eight thousand, ninety-two".

Divisors: 1 2 3 4 6 12 149 298 447 596 894 1788 29009 58018 87027 116036 174054 348108 4322341 8644682 12967023 17289364 25934046 51868092