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51930588 = 2234327549
BaseRepresentation
bin1100011000011…
…0010111011100
310121201100101010
43012012113130
5101243234323
65053015220
71200255063
oct306062734
9117640333
1051930588
112734a246
1215484510
13a9b3078
146c7b1da
15485bc93
hex31865dc

51930588 has 12 divisors (see below), whose sum is σ = 121171400. Its totient is φ = 17310192.

The previous prime is 51930569. The next prime is 51930589. The reversal of 51930588 is 88503915.

51930588 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (51930589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2163763 + ... + 2163786.

Almost surely, 251930588 is an apocalyptic number.

It is an amenable number.

51930588 is an abundant number, since it is smaller than the sum of its proper divisors (69240812).

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

51930588 is a wasteful number, since it uses less digits than its factorization.

51930588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4327556 (or 4327554 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 51930588 is about 7206.2880874969. The cubic root of 51930588 is about 373.0849641255.

The spelling of 51930588 in words is "fifty-one million, nine hundred thirty thousand, five hundred eighty-eight".

Divisors: 1 2 3 4 6 12 4327549 8655098 12982647 17310196 25965294 51930588