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53251044 = 22372118233
BaseRepresentation
bin1100101100100…
…0101111100100
310201012102200220
43023020233210
5102113013134
65141204340
71214424600
oct313105744
9121172626
1053251044
1128071330
1215a006b0
13b0560c2
147102500
154a1d149
hex32c8be4

53251044 has 72 divisors (see below), whose sum is σ = 157697568. Its totient is φ = 13829760.

The previous prime is 53251031. The next prime is 53251069. The reversal of 53251044 is 44015235.

53251044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2352 + ... + 10584.

It is an arithmetic number, because the mean of its divisors is an integer number (2190244).

Almost surely, 253251044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53251044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78848784).

53251044 is an abundant number, since it is smaller than the sum of its proper divisors (104446524).

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

53251044 is a wasteful number, since it uses less digits than its factorization.

53251044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8265 (or 8256 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 53251044 is about 7297.3312930139. The cubic root of 53251044 is about 376.2207188318.

Adding to 53251044 its reverse (44015235), we get a palindrome (97266279).

The spelling of 53251044 in words is "fifty-three million, two hundred fifty-one thousand, forty-four".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 49 66 77 84 98 132 147 154 196 231 294 308 462 539 588 924 1078 1617 2156 3234 6468 8233 16466 24699 32932 49398 57631 90563 98796 115262 172893 181126 230524 271689 345786 362252 403417 543378 633941 691572 806834 1086756 1210251 1267882 1613668 1901823 2420502 2535764 3803646 4437587 4841004 7607292 8875174 13312761 17750348 26625522 53251044