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117989105696 = 25711217325163
BaseRepresentation
bin110110111100010110…
…0101110000000100000
3102021112212022121002122
41231320230232000200
53413120202340241
6130111540003412
711344610564540
oct1557054560040
9367485277078
10117989105696
1146047857500
121aa4a390568
13b1846c7397
1459d4253320
15310869004b
hex1b78b2e020

117989105696 has 144 divisors (see below), whose sum is σ = 293502025152. Its totient is φ = 45702243840.

The previous prime is 117989105683. The next prime is 117989105699. The reversal of 117989105696 is 696501989711.

It is not an unprimeable number, because it can be changed into a prime (117989105699) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4676411 + ... + 4701573.

It is an arithmetic number, because the mean of its divisors is an integer number (2038208508).

Almost surely, 2117989105696 is an apocalyptic number.

117989105696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117989105696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146751012576).

117989105696 is an abundant number, since it is smaller than the sum of its proper divisors (175512919456).

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

117989105696 is a wasteful number, since it uses less digits than its factorization.

117989105696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25375 (or 25356 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 62.

The spelling of 117989105696 in words is "one hundred seventeen billion, nine hundred eighty-nine million, one hundred five thousand, six hundred ninety-six".

Divisors: 1 2 4 7 8 11 14 16 22 28 32 44 56 77 88 112 121 154 173 176 224 242 308 346 352 484 616 692 847 968 1211 1232 1384 1694 1903 1936 2422 2464 2768 3388 3806 3872 4844 5536 6776 7612 9688 13321 13552 15224 19376 20933 25163 26642 27104 30448 38752 41866 50326 53284 60896 83732 100652 106568 146531 167464 176141 201304 213136 276793 293062 334928 352282 402608 426272 553586 586124 669856 704564 805216 1107172 1172248 1409128 1937551 2214344 2344496 2818256 3044723 3875102 4353199 4428688 4688992 5636512 6089446 7750204 8706398 8857376 12178892 15500408 17412796 21313061 24357784 30472393 31000816 34825592 42626122 47885189 48715568 60944786 62001632 69651184 85252244 95770378 97431136 121889572 139302368 170504488 191540756 243779144 335196323 341008976 383081512 487558288 526737079 670392646 682017952 766163024 975116576 1053474158 1340785292 1532326048 2106948316 2681570584 3687159553 4213896632 5363141168 7374319106 8427793264 10726282336 14748638212 16855586528 29497276424 58994552848 117989105696