Base | Representation |
---|---|
bin | 101011100011… |
… | …1101100001111 |
3 | 1120222021220000 |
4 | 1113013230033 |
5 | 21321304111 |
6 | 2133255343 |
7 | 365056116 |
oct | 127075417 |
9 | 46867800 |
10 | 22838031 |
11 | 11989607 |
12 | 7794553 |
13 | 4968138 |
14 | 3066c7d |
15 | 2011c56 |
hex | 15c7b0f |
22838031 has 40 divisors (see below), whose sum is σ = 35777280. Its totient is φ = 14506128.
The previous prime is 22838027. The next prime is 22838033. The reversal of 22838031 is 13083822.
It is not a de Polignac number, because 22838031 - 22 = 22838027 is a prime.
It is a super-2 number, since 2×228380312 = 1043151319913922, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 22837986 and 22838004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22838033) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 275116 + ... + 275198.
It is an arithmetic number, because the mean of its divisors is an integer number (894432).
Almost surely, 222838031 is an apocalyptic number.
22838031 is a deficient number, since it is larger than the sum of its proper divisors (12939249).
22838031 is an equidigital number, since it uses as much as digits as its factorization.
22838031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 217 (or 208 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 27.
The square root of 22838031 is about 4778.9152534859. The cubic root of 22838031 is about 283.7175620639.
The spelling of 22838031 in words is "twenty-two million, eight hundred thirty-eight thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.185 sec. • engine limits •