Base | Representation |
---|---|
bin | 1000010001100001… |
… | …0010110011010100 |
3 | 12201210010111201002 |
4 | 2010120102303110 |
5 | 14022031222410 |
6 | 1004214522432 |
7 | 106015566620 |
oct | 20430226324 |
9 | 5653114632 |
10 | 2220960980 |
11 | a3a746947 |
12 | 51b966418 |
13 | 2951902c4 |
14 | 170d76180 |
15 | ceeac7a5 |
hex | 84612cd4 |
2220960980 has 48 divisors (see below), whose sum is σ = 5460327936. Its totient is φ = 742897920.
The previous prime is 2220960961. The next prime is 2220961019. The reversal of 2220960980 is 890690222.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187724 + ... + 199203.
It is an arithmetic number, because the mean of its divisors is an integer number (113756832).
Almost surely, 22220960980 is an apocalyptic number.
2220960980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2220960980 is an abundant number, since it is smaller than the sum of its proper divisors (3239366956).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2220960980 is a wasteful number, since it uses less digits than its factorization.
2220960980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 386984 (or 386982 counting only the distinct ones).
The product of its (nonzero) digits is 31104, while the sum is 38.
The square root of 2220960980 is about 47127.0726865143. The cubic root of 2220960980 is about 1304.7089538504.
The spelling of 2220960980 in words is "two billion, two hundred twenty million, nine hundred sixty thousand, nine hundred eighty".
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