Base | Representation |
---|---|
bin | 101111111101010001… |
… | …1010011001001001100 |
3 | 100211211101201120112210 |
4 | 1133322203103021030 |
5 | 3141404334232020 |
6 | 115151214030420 |
7 | 10304063621004 |
oct | 1377243231114 |
9 | 324741646483 |
10 | 102987805260 |
11 | 3a749a2744a |
12 | 17b624a8410 |
13 | 9933814452 |
14 | 4dadbb1004 |
15 | 2a2b6c03e0 |
hex | 17fa8d324c |
102987805260 has 24 divisors (see below), whose sum is σ = 288365854896. Its totient is φ = 27463414720.
The previous prime is 102987805259. The next prime is 102987805267. The reversal of 102987805260 is 62508789201.
It is a super-3 number, since 3×1029878052603 (a number of 34 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (102987805267) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858231651 + ... + 858231770.
It is an arithmetic number, because the mean of its divisors is an integer number (12015243954).
Almost surely, 2102987805260 is an apocalyptic number.
102987805260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
102987805260 is an abundant number, since it is smaller than the sum of its proper divisors (185378049636).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102987805260 is a wasteful number, since it uses less digits than its factorization.
102987805260 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1716463433 (or 1716463431 counting only the distinct ones).
The product of its (nonzero) digits is 483840, while the sum is 48.
The spelling of 102987805260 in words is "one hundred two billion, nine hundred eighty-seven million, eight hundred five thousand, two hundred sixty".
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