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51255231115332 = 22383347361341047
BaseRepresentation
bin10111010011101110010011…
…10101111111000001000100
320201110221201011221201221110
423221313021311333001010
523204231203131142312
6301002154512245020
713540032260024046
oct1351671165770104
9221427634851843
1051255231115332
111537124881a642
1258b9735240770
13227a4697690ca
14c92aa30c5a96
155dd3ed59a43c
hex2e9dc9d7f044

51255231115332 has 96 divisors (see below), whose sum is σ = 121421812442112. Its totient is φ = 16825521154176.

The previous prime is 51255231115243. The next prime is 51255231115343. The reversal of 51255231115332 is 23351113255215.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1248675633 + ... + 1248716679.

It is an arithmetic number, because the mean of its divisors is an integer number (1264810546272).

Almost surely, 251255231115332 is an apocalyptic number.

It is an amenable number.

51255231115332 is an abundant number, since it is smaller than the sum of its proper divisors (70166581326780).

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

51255231115332 is a wasteful number, since it uses less digits than its factorization.

51255231115332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45097 (or 45095 counting only the distinct ones).

The product of its digits is 135000, while the sum is 39.

The spelling of 51255231115332 in words is "fifty-one trillion, two hundred fifty-five billion, two hundred thirty-one million, one hundred fifteen thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 83 166 249 332 347 498 694 996 1041 1388 2082 3613 4164 7226 10839 14452 21678 28801 41047 43356 57602 82094 86403 115204 123141 164188 172806 246282 299879 345612 492564 599758 899637 1199516 1253711 1799274 2507422 3406901 3598548 3761133 5014844 6813802 7522266 10220703 13627604 14243309 15044532 20441406 28486618 40882812 42729927 56973236 85459854 104058013 148302811 170919708 208116026 296605622 312174039 416232052 444908433 593211244 624348078 889816866 1182194647 1248696156 1779633732 2364389294 3546583941 4728778588 7093167882 12309133313 14186335764 24618266626 36927399939 49236533252 51461075417 73854799878 102922150834 147709599756 154383226251 205844301668 308766452502 617532905004 4271269259611 8542538519222 12813807778833 17085077038444 25627615557666 51255231115332