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52831694744868 = 2231321131283179689
BaseRepresentation
bin11000000001100110101100…
…11001011110110100100100
320221001122211122101201101010
430000303112121132310210
523411043302323313433
6304210313455102220
714061651434544204
oct1400632631366444
9227048748351333
1052831694744868
1115919883400596
125b13177811970
132363013455400
14d090d3982404
1561941871ee63
hex300cd665ed24

52831694744868 has 144 divisors (see below), whose sum is σ = 134773002826560. Its totient is φ = 16099400798208.

The previous prime is 52831694744867. The next prime is 52831694744893. The reversal of 52831694744868 is 86844749613825.

It is a super-2 number, since 2×528316947448682 (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52831694744868.

It is not an unprimeable number, because it can be changed into a prime (52831694744867) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 293927568 + ... + 294107256.

It is an arithmetic number, because the mean of its divisors is an integer number (935923630740).

Almost surely, 252831694744868 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 52831694744868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67386501413280).

52831694744868 is an abundant number, since it is smaller than the sum of its proper divisors (81941308081692).

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

52831694744868 is a wasteful number, since it uses less digits than its factorization.

52831694744868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181118 (or 181103 counting only the distinct ones).

The product of its digits is 2229534720, while the sum is 75.

The spelling of 52831694744868 in words is "fifty-two trillion, eight hundred thirty-one billion, six hundred ninety-four million, seven hundred forty-four thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 113 156 169 226 338 339 452 507 676 678 1014 1283 1356 1469 2028 2566 2938 3849 4407 5132 5876 7698 8814 15396 16679 17628 19097 33358 38194 50037 57291 66716 76388 100074 114582 144979 179689 200148 216827 229164 289958 359378 433654 434937 539067 579916 650481 718756 867308 869874 1078134 1300962 1739748 1884727 2156268 2335957 2601924 3769454 4671914 5654181 7007871 7538908 9343828 11308362 14015742 20304857 22616724 24501451 28031484 30367441 40609714 49002902 60734882 60914571 73504353 81219428 91102323 98005804 121469764 121829142 147008706 182204646 230540987 243658284 263963141 294017412 364409292 461081974 527926282 691622961 791889423 922163948 1055852564 1383245922 1583778846 2766491844 2997032831 3167557692 3431520833 5994065662 6863041666 8991098493 10294562499 11988131324 13726083332 17982196986 20589124998 26051131531 35964393972 38961426803 41178249996 52102263062 77922853606 78153394593 104204526124 116884280409 155845707212 156306789186 233768560818 312613578372 338664709903 467537121636 677329419806 1015994129709 1354658839612 2031988259418 4063976518836 4402641228739 8805282457478 13207923686217 17610564914956 26415847372434 52831694744868