Base | Representation |
---|---|
bin | 10100100111000100… |
… | …011011110001010111 |
3 | 2010010022002020111200 |
4 | 110213010123301113 |
5 | 330310324411411 |
6 | 14055545203543 |
7 | 1412260350621 |
oct | 244704336127 |
9 | 63108066450 |
10 | 22130310231 |
11 | 9426a8a697 |
12 | 43574905b3 |
13 | 2118b48a33 |
14 | 10dd1c1c11 |
15 | 897cbde56 |
hex | 52711bc57 |
22130310231 has 12 divisors (see below), whose sum is σ = 32490037320. Its totient is φ = 14511678480.
The previous prime is 22130310199. The next prime is 22130310239. The reversal of 22130310231 is 13201303122.
It is not a de Polignac number, because 22130310231 - 25 = 22130310199 is a prime.
It is a super-2 number, since 2×221303102312 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22130310239) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20154561 + ... + 20155658.
It is an arithmetic number, because the mean of its divisors is an integer number (2707503110).
Almost surely, 222130310231 is an apocalyptic number.
22130310231 is a deficient number, since it is larger than the sum of its proper divisors (10359727089).
22130310231 is a wasteful number, since it uses less digits than its factorization.
22130310231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40310286 (or 40310283 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 22130310231 its reverse (13201303122), we get a palindrome (35331613353).
The spelling of 22130310231 in words is "twenty-two billion, one hundred thirty million, three hundred ten thousand, two hundred thirty-one".
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