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102990817160 = 235711167200231
BaseRepresentation
bin101111111101010111…
…0110010011110001000
3100211211121101121002122
41133322232302132020
53141411122122120
6115151402350412
710304131334030
oct1377256623610
9324747347078
10102990817160
113a7506a4320
1217b634bb408
13993432a33a
144db03568c0
152a2bab7a25
hex17fabb2788

102990817160 has 128 divisors (see below), whose sum is σ = 290640752640. Its totient is φ = 31908652800.

The previous prime is 102990817159. The next prime is 102990817229. The reversal of 102990817160 is 61718099201.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 414245 + ... + 614475.

It is an arithmetic number, because the mean of its divisors is an integer number (2270630880).

Almost surely, 2102990817160 is an apocalyptic number.

102990817160 is a gapful number since it is divisible by the number (10) 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 102990817160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145320376320).

102990817160 is an abundant number, since it is smaller than the sum of its proper divisors (187649935480).

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

102990817160 is a wasteful number, since it uses less digits than its factorization.

102990817160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200427 (or 200423 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 44.

The spelling of 102990817160 in words is "one hundred two billion, nine hundred ninety million, eight hundred seventeen thousand, one hundred sixty".

Divisors: 1 2 4 5 7 8 10 11 14 20 22 28 35 40 44 55 56 70 77 88 110 140 154 167 220 280 308 334 385 440 616 668 770 835 1169 1336 1540 1670 1837 2338 3080 3340 3674 4676 5845 6680 7348 9185 9352 11690 12859 14696 18370 23380 25718 36740 46760 51436 64295 73480 102872 128590 200231 257180 400462 514360 800924 1001155 1401617 1601848 2002310 2202541 2803234 4004620 4405082 5606468 7008085 8009240 8810164 11012705 11212936 14016170 15417787 17620328 22025410 28032340 30835574 33438577 44050820 56064680 61671148 66877154 77088935 88101640 123342296 133754308 154177870 167192885 234070039 267508616 308355740 334385770 367824347 468140078 616711480 668771540 735648694 936280156 1170350195 1337543080 1471297388 1839121735 1872560312 2340700390 2574770429 2942594776 3678243470 4681400780 5149540858 7356486940 9362801560 10299081716 12873852145 14712973880 20598163432 25747704290 51495408580 102990817160