Base | Representation |
---|---|
bin | 10100010101101101… |
… | …100100010110000000 |
3 | 2002101000010101210000 |
4 | 110111231210112000 |
5 | 324211302301420 |
6 | 14011023440000 |
7 | 1402123213164 |
oct | 242555442600 |
9 | 62330111700 |
10 | 21839103360 |
11 | 9297671658 |
12 | 4295a56000 |
13 | 20a0709389 |
14 | 10b265aca4 |
15 | 87c44a690 |
hex | 515b64580 |
21839103360 has 160 divisors (see below), whose sum is σ = 77991566400. Its totient is φ = 5823747072.
The previous prime is 21839103353. The next prime is 21839103371. The reversal of 21839103360 is 6330193812.
It is a tau number, because it is divible by the number of its divisors (160).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 158800 + ... + 262479.
It is an arithmetic number, because the mean of its divisors is an integer number (487447290).
Almost surely, 221839103360 is an apocalyptic number.
21839103360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
21839103360 is an abundant number, since it is smaller than the sum of its proper divisors (56152463040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21839103360 is an equidigital number, since it uses as much as digits as its factorization.
21839103360 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 421310 (or 421289 counting only the distinct ones).
The product of its (nonzero) digits is 23328, while the sum is 36.
The spelling of 21839103360 in words is "twenty-one billion, eight hundred thirty-nine million, one hundred three thousand, three hundred sixty".
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