Base | Representation |
---|---|
bin | 1000000111110011… |
… | …1000110001000110 |
3 | 12121221110202100210 |
4 | 2001330320301012 |
5 | 13431114101042 |
6 | 1000201420250 |
7 | 105012403266 |
oct | 20174706106 |
9 | 5557422323 |
10 | 2180222022 |
11 | a19751090 |
12 | 50a19a686 |
13 | 2898c8304 |
14 | 1697ad7a6 |
15 | cb611a9c |
hex | 81f38c46 |
2180222022 has 32 divisors (see below), whose sum is σ = 4758756480. Its totient is φ = 660408320.
The previous prime is 2180221951. The next prime is 2180222039. The reversal of 2180222022 is 2202220812.
It is a self number, because there is not a number n which added to its sum of digits gives 2180222022.
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, 214753 + ... + 224675.
It is an arithmetic number, because the mean of its divisors is an integer number (148711140).
Almost surely, 22180222022 is an apocalyptic number.
2180222022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
2180222022 is an abundant number, since it is smaller than the sum of its proper divisors (2578534458).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2180222022 is a wasteful number, since it uses less digits than its factorization.
2180222022 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13268.
The product of its (nonzero) digits is 512, while the sum is 21.
The square root of 2180222022 is about 46692.8476535754. The cubic root of 2180222022 is about 1296.6822741678.
Adding to 2180222022 its reverse (2202220812), we get a palindrome (4382442834).
The spelling of 2180222022 in words is "two billion, one hundred eighty million, two hundred twenty-two thousand, twenty-two".
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