Base | Representation |
---|---|
bin | 10011101010110100… |
… | …000001010011100000 |
3 | 2000111211211101110210 |
4 | 103222310001103200 |
5 | 321223024441220 |
6 | 13411353254120 |
7 | 1345233502404 |
oct | 235264012340 |
9 | 60454741423 |
10 | 21119374560 |
11 | 8a58377769 |
12 | 4114a04340 |
13 | 1cb758014b |
14 | 1044c29104 |
15 | 83917c6e0 |
hex | 4ead014e0 |
21119374560 has 96 divisors (see below), whose sum is σ = 67114928160. Its totient is φ = 5581979648.
The previous prime is 21119374553. The next prime is 21119374561. The reversal of 21119374560 is 6547391112.
It is a tau number, because it is divible by the number of its divisors (96).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (21119374561) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140445 + ... + 248924.
It is an arithmetic number, because the mean of its divisors is an integer number (699113835).
Almost surely, 221119374560 is an apocalyptic number.
21119374560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
21119374560 is an abundant number, since it is smaller than the sum of its proper divisors (45995553600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21119374560 is a wasteful number, since it uses less digits than its factorization.
21119374560 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 389500 (or 389492 counting only the distinct ones).
The product of its (nonzero) digits is 45360, while the sum is 39.
The spelling of 21119374560 in words is "twenty-one billion, one hundred nineteen million, three hundred seventy-four thousand, five hundred sixty".
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