Base | Representation |
---|---|
bin | 10101100000110111… |
… | …100000011111100111 |
3 | 2012121212201121010010 |
4 | 111200313200133213 |
5 | 334302100001411 |
6 | 14340105101303 |
7 | 1445303522310 |
oct | 254067403747 |
9 | 65555647103 |
10 | 23100000231 |
11 | 9884391090 |
12 | 4588187833 |
13 | 2241a02ab9 |
14 | 1191cbd607 |
15 | 902eb47a6 |
hex | 560de07e7 |
23100000231 has 32 divisors (see below), whose sum is σ = 40658830848. Its totient is φ = 11294115840.
The previous prime is 23100000229. The next prime is 23100000239. The reversal of 23100000231 is 13200000132.
It is a happy number.
It is not a de Polignac number, because 23100000231 - 21 = 23100000229 is a prime.
It is a super-2 number, since 2×231000002312 (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 (23100000239) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2937250 + ... + 2945103.
It is an arithmetic number, because the mean of its divisors is an integer number (1270588464).
Almost surely, 223100000231 is an apocalyptic number.
23100000231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
23100000231 is a deficient number, since it is larger than the sum of its proper divisors (17558830617).
23100000231 is a wasteful number, since it uses less digits than its factorization.
23100000231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5882391.
The product of its (nonzero) digits is 36, while the sum is 12.
Multiplying 23100000231 by its sum of digits (12), we get a palindrome (277200002772).
Adding to 23100000231 its reverse (13200000132), we get a palindrome (36300000363).
Subtracting from 23100000231 its reverse (13200000132), we obtain a palindrome (9900000099).
The spelling of 23100000231 in words is "twenty-three billion, one hundred million, two hundred thirty-one", and thus it is an aban number.
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •