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51160044 = 223133171149
BaseRepresentation
bin1100001100101…
…0001111101100
310120021012101110
43003022033230
5101044110134
65024312020
71160565435
oct303121754
9116235343
1051160044
1126973331
1215172610
13a7a3420
146b1a48c
1547587e9
hex30ca3ec

51160044 has 96 divisors (see below), whose sum is σ = 135475200. Its totient is φ = 14918400.

The previous prime is 51160037. The next prime is 51160049. The reversal of 51160044 is 44006115.

51160044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51160044.

It is not an unprimeable number, because it can be changed into a prime (51160049) 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 31 ways as a sum of consecutive naturals, for example, 343282 + ... + 343430.

It is an arithmetic number, because the mean of its divisors is an integer number (1411200).

Almost surely, 251160044 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 51160044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67737600).

51160044 is an abundant number, since it is smaller than the sum of its proper divisors (84315156).

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

51160044 is a wasteful number, since it uses less digits than its factorization.

51160044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 51160044 is about 7152.6249726936. The cubic root of 51160044 is about 371.2304881536.

Adding to 51160044 its reverse (44006115), we get a palindrome (95166159).

The spelling of 51160044 in words is "fifty-one million, one hundred sixty thousand, forty-four".

Divisors: 1 2 3 4 6 12 13 26 31 39 52 62 71 78 93 124 142 149 156 186 213 284 298 372 403 426 447 596 806 852 894 923 1209 1612 1788 1846 1937 2201 2418 2769 3692 3874 4402 4619 4836 5538 5811 6603 7748 8804 9238 10579 11076 11622 13206 13857 18476 21158 23244 26412 27714 28613 31737 42316 55428 57226 60047 63474 85839 114452 120094 126948 137527 171678 180141 240188 275054 327949 343356 360282 412581 550108 655898 720564 825162 983847 1311796 1650324 1967694 3935388 4263337 8526674 12790011 17053348 25580022 51160044