Base | Representation |
---|---|
bin | 10101100010001011… |
… | …110100001111101111 |
3 | 2012200102022102222200 |
4 | 111202023310033233 |
5 | 334323224214411 |
6 | 14342214512543 |
7 | 1445662421565 |
oct | 254213641757 |
9 | 65612272880 |
10 | 23122101231 |
11 | 9895906979 |
12 | 4593665753 |
13 | 2246470608 |
14 | 1194bd3a35 |
15 | 904dcce56 |
hex | 5622f43ef |
23122101231 has 6 divisors (see below), whose sum is σ = 33398590680. Its totient is φ = 15414734148.
The previous prime is 23122101229. The next prime is 23122101257. The reversal of 23122101231 is 13210122132.
It is not a de Polignac number, because 23122101231 - 21 = 23122101229 is a prime.
It is a super-2 number, since 2×231221012312 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23122101271) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1284561171 + ... + 1284561188.
It is an arithmetic number, because the mean of its divisors is an integer number (5566431780).
Almost surely, 223122101231 is an apocalyptic number.
23122101231 is a deficient number, since it is larger than the sum of its proper divisors (10276489449).
23122101231 is a wasteful number, since it uses less digits than its factorization.
23122101231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2569122365 (or 2569122362 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 23122101231 its reverse (13210122132), we get a palindrome (36332223363).
It can be divided in two parts, 2312210 and 1231, that added together give a 4-th power (2313441 = 394).
The spelling of 23122101231 in words is "twenty-three billion, one hundred twenty-two million, one hundred one thousand, two hundred thirty-one".
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