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102996188130 = 235111975872699
BaseRepresentation
bin101111111101100001…
…1010001101111100010
3100211211222111110200110
41133323003101233202
53141414011010010
6115152113432150
710304225103603
oct1377303215742
9324758443613
10102996188130
113a753732640
1217b6526b656
13993548ac24
144db0d53daa
152a2c2c9120
hex17fb0d1be2

102996188130 has 128 divisors (see below), whose sum is σ = 271593907200. Its totient is φ = 24790519040.

The previous prime is 102996188093. The next prime is 102996188131. The reversal of 102996188130 is 31881699201.

It is a self number, because there is not a number n which added to its sum of digits gives 102996188130.

It is not an unprimeable number, because it can be changed into a prime (102996188131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38159521 + ... + 38162219.

It is an arithmetic number, because the mean of its divisors is an integer number (2121827400).

Almost surely, 2102996188130 is an apocalyptic number.

102996188130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 102996188130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135796953600).

102996188130 is an abundant number, since it is smaller than the sum of its proper divisors (168597719070).

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

102996188130 is a wasteful number, since it uses less digits than its factorization.

102996188130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3504.

The product of its (nonzero) digits is 186624, while the sum is 48.

Subtracting from 102996188130 its reverse (31881699201), we obtain a square (71114488929 = 2666732).

The spelling of 102996188130 in words is "one hundred two billion, nine hundred ninety-six million, one hundred eighty-eight thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 197 330 394 587 591 985 1174 1182 1761 1970 2167 2699 2935 2955 3522 4334 5398 5870 5910 6457 6501 8097 8805 10835 12914 13002 13495 16194 17610 19371 21670 26990 29689 32285 32505 38742 40485 59378 64570 65010 80970 89067 96855 115639 148445 178134 193710 231278 296890 346917 445335 531703 578195 693834 890670 1063406 1156390 1272029 1584313 1595109 1734585 2544058 2658515 3168626 3190218 3469170 3816087 4752939 5317030 5848733 6360145 7632174 7921565 7975545 9505878 11697466 12720290 15843130 15951090 17427443 17546199 19080435 23764695 29243665 34854886 35092398 38160870 47529390 52282329 58487330 87137215 87730995 104564658 174274430 175461990 261411645 312109661 522823290 624219322 936328983 1560548305 1872657966 3121096610 3433206271 4681644915 6866412542 9363289830 10299618813 17166031355 20599237626 34332062710 51498094065 102996188130