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51883764 = 2234323647
BaseRepresentation
bin1100010111101…
…0111011110100
310121121222010220
43011322323310
5101240240024
65052014340
71200001422
oct305727364
9117558126
1051883764
1127318049
12154613b0
13a99796a
146c68112
15484ce79
hex317aef4

51883764 has 12 divisors (see below), whose sum is σ = 121062144. Its totient is φ = 17294584.

The previous prime is 51883753. The next prime is 51883771. The reversal of 51883764 is 46738815.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2161812 + ... + 2161835.

It is an arithmetic number, because the mean of its divisors is an integer number (10088512).

Almost surely, 251883764 is an apocalyptic number.

It is an amenable number.

51883764 is an abundant number, since it is smaller than the sum of its proper divisors (69178380).

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

51883764 is a wasteful number, since it uses less digits than its factorization.

51883764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4323654 (or 4323652 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 51883764 is about 7203.0385255113. The cubic root of 51883764 is about 372.9727978399.

The spelling of 51883764 in words is "fifty-one million, eight hundred eighty-three thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 12 4323647 8647294 12970941 17294588 25941882 51883764