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51084878 = 21311171759
BaseRepresentation
bin1100001011011…
…1111001001110
310120010101021112
43002313321032
5101034204003
65022532022
71160133335
oct302677116
9116111245
1051084878
1126921909
1215137012
13a778150
146adad1c
1547413d8
hex30b7e4e

51084878 has 16 divisors (see below), whose sum is σ = 82642560. Its totient is φ = 23543136.

The previous prime is 51084851. The next prime is 51084937. The reversal of 51084878 is 87848015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28163 + ... + 29921.

It is an arithmetic number, because the mean of its divisors is an integer number (5165160).

Almost surely, 251084878 is an apocalyptic number.

51084878 is a deficient number, since it is larger than the sum of its proper divisors (31557682).

51084878 is a wasteful number, since it uses less digits than its factorization.

51084878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891.

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 51084878 is about 7147.3686066972. The cubic root of 51084878 is about 371.0485910739.

The spelling of 51084878 in words is "fifty-one million, eighty-four thousand, eight hundred seventy-eight".

Divisors: 1 2 13 26 1117 1759 2234 3518 14521 22867 29042 45734 1964803 3929606 25542439 51084878