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51080886 = 23217166931
BaseRepresentation
bin1100001011011…
…0111010110110
310120010011210200
43002312322312
5101034042021
65022501330
71160115603
oct302667266
9116104720
1051080886
112691990a
1215134846
13a77639c
146ad96aa
154740126
hex30b6eb6

51080886 has 24 divisors (see below), whose sum is σ = 117186264. Its totient is φ = 16025280.

The previous prime is 51080881. The next prime is 51080891. The reversal of 51080886 is 68808015.

It is an interprime number because it is at equal distance from previous prime (51080881) and next prime (51080891).

It is a self number, because there is not a number n which added to its sum of digits gives 51080886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51080881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83160 + ... + 83771.

It is an arithmetic number, because the mean of its divisors is an integer number (4882761).

Almost surely, 251080886 is an apocalyptic number.

51080886 is an abundant number, since it is smaller than the sum of its proper divisors (66105378).

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

51080886 is a wasteful number, since it uses less digits than its factorization.

51080886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166956 (or 166953 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 51080886 is about 7147.0893376255. The cubic root of 51080886 is about 371.0389256920.

The spelling of 51080886 in words is "fifty-one million, eighty thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 306 166931 333862 500793 1001586 1502379 2837827 3004758 5675654 8513481 17026962 25540443 51080886