Base | Representation |
---|---|
bin | 10100001100000001… |
… | …111001110111000100 |
3 | 2001221200110112102012 |
4 | 110030001321313010 |
5 | 323343211142322 |
6 | 13542542033352 |
7 | 1365111405632 |
oct | 241401716704 |
9 | 61850415365 |
10 | 21676662212 |
11 | 9213a02177 |
12 | 424b578858 |
13 | 2075b7275a |
14 | 1098c54352 |
15 | 86d05eae2 |
hex | 50c079dc4 |
21676662212 has 12 divisors (see below), whose sum is σ = 37986923520. Its totient is φ = 10823255496.
The previous prime is 21676662211. The next prime is 21676662223. The reversal of 21676662212 is 21226667612.
It is a self number, because there is not a number n which added to its sum of digits gives 21676662212.
It is not an unprimeable number, because it can be changed into a prime (21676662211) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3765668 + ... + 3771419.
It is an arithmetic number, because the mean of its divisors is an integer number (3165576960).
Almost surely, 221676662212 is an apocalyptic number.
It is an amenable number.
21676662212 is a deficient number, since it is larger than the sum of its proper divisors (16310261308).
21676662212 is a wasteful number, since it uses less digits than its factorization.
21676662212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7537810 (or 7537808 counting only the distinct ones).
The product of its digits is 145152, while the sum is 41.
The spelling of 21676662212 in words is "twenty-one billion, six hundred seventy-six million, six hundred sixty-two thousand, two hundred twelve".
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