Base | Representation |
---|---|
bin | 10010111010100101… |
… | …011000110010001000 |
3 | 1221102110021200211020 |
4 | 102322211120302020 |
5 | 313043404412300 |
6 | 13155210432440 |
7 | 1316210060646 |
oct | 227245306210 |
9 | 57373250736 |
10 | 20310232200 |
11 | 8682662075 |
12 | 3b29a32720 |
13 | 1bb8a48b9b |
14 | da95a0196 |
15 | 7dd0eb8a0 |
hex | 4ba958c88 |
20310232200 has 96 divisors (see below), whose sum is σ = 64301420160. Its totient is φ = 5300819200.
The previous prime is 20310232181. The next prime is 20310232249. The reversal of 20310232200 is 223201302.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 20310232200.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 331911 + ... + 388310.
It is an arithmetic number, because the mean of its divisors is an integer number (669806460).
Almost surely, 220310232200 is an apocalyptic number.
20310232200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20310232200 is an abundant number, since it is smaller than the sum of its proper divisors (43991187960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20310232200 is a wasteful number, since it uses less digits than its factorization.
20310232200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 720287 (or 720278 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 15.
Adding to 20310232200 its reverse (223201302), we get a palindrome (20533433502).
The spelling of 20310232200 in words is "twenty billion, three hundred ten million, two hundred thirty-two thousand, two hundred".
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