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51872934 = 2331127799
BaseRepresentation
bin1100010111100…
…0010010100110
310121121102021210
43011320102212
5101234413214
65051452250
71166625021
oct305702246
9117542253
1051872934
112730a9a3
1215457086
13a992a59
146c641b8
154849b59
hex31784a6

51872934 has 16 divisors (see below), whose sum is σ = 104083200. Its totient is φ = 17234760.

The previous prime is 51872903. The next prime is 51872969. The reversal of 51872934 is 43927815.

It is a junction number, because it is equal to n+sod(n) for n = 51872892 and 51872901.

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, 12034 + ... + 15765.

It is an arithmetic number, because the mean of its divisors is an integer number (6505200).

Almost surely, 251872934 is an apocalyptic number.

51872934 is an abundant number, since it is smaller than the sum of its proper divisors (52210266).

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

51872934 is a wasteful number, since it uses less digits than its factorization.

51872934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28115.

The product of its digits is 60480, while the sum is 39.

The square root of 51872934 is about 7202.2867202021. The cubic root of 51872934 is about 372.9468451065.

The spelling of 51872934 in words is "fifty-one million, eight hundred seventy-two thousand, nine hundred thirty-four".

Divisors: 1 2 3 6 311 622 933 1866 27799 55598 83397 166794 8645489 17290978 25936467 51872934