Base | Representation |
---|---|
bin | 111100010001000… |
… | …1110100001001001 |
3 | 12012221012100102010 |
4 | 1320202032201021 |
5 | 13120143111111 |
6 | 532355330133 |
7 | 101053512300 |
oct | 17042164111 |
9 | 5187170363 |
10 | 2022238281 |
11 | 948556608 |
12 | 4852b0949 |
13 | 262c624cb |
14 | 152807437 |
15 | bc806aa6 |
hex | 7888e849 |
2022238281 has 48 divisors (see below), whose sum is σ = 3343939200. Its totient is φ = 1080092160.
The previous prime is 2022238279. The next prime is 2022238289. The reversal of 2022238281 is 1828322202.
It is not a de Polignac number, because 2022238281 - 21 = 2022238279 is a prime.
It is a super-2 number, since 2×20222382812 = 8178895330283669922, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (2022238289) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 369636 + ... + 375066.
It is an arithmetic number, because the mean of its divisors is an integer number (69665400).
Almost surely, 22022238281 is an apocalyptic number.
2022238281 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
2022238281 is a deficient number, since it is larger than the sum of its proper divisors (1321700919).
2022238281 is a wasteful number, since it uses less digits than its factorization.
2022238281 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5614 (or 5607 counting only the distinct ones).
The product of its (nonzero) digits is 6144, while the sum is 30.
The square root of 2022238281 is about 44969.3037637898. The cubic root of 2022238281 is about 1264.5735945600.
The spelling of 2022238281 in words is "two billion, twenty-two million, two hundred thirty-eight thousand, two hundred eighty-one".
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