Base | Representation |
---|---|
bin | 10101011011100101… |
… | …100001101000100111 |
3 | 2012101201000020202122 |
4 | 111123211201220213 |
5 | 334111404301411 |
6 | 14323222100155 |
7 | 1443146450261 |
oct | 253345415047 |
9 | 65351006678 |
10 | 23011400231 |
11 | 9839376646 |
12 | 456257a65b |
13 | 2229551171 |
14 | 1184218b31 |
15 | 8ea3129db |
hex | 55b961a27 |
23011400231 has 4 divisors (see below), whose sum is σ = 23011714464. Its totient is φ = 23011086000.
The previous prime is 23011400201. The next prime is 23011400233. The reversal of 23011400231 is 13200411032.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 23011400231 - 214 = 23011383847 is a prime.
It is a super-2 number, since 2×230114002312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23011400233) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17186 + ... + 215216.
It is an arithmetic number, because the mean of its divisors is an integer number (5752928616).
Almost surely, 223011400231 is an apocalyptic number.
23011400231 is a deficient number, since it is larger than the sum of its proper divisors (314233).
23011400231 is a wasteful number, since it uses less digits than its factorization.
23011400231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 314232.
The product of its (nonzero) digits is 144, while the sum is 17.
Adding to 23011400231 its reverse (13200411032), we get a palindrome (36211811263).
The spelling of 23011400231 in words is "twenty-three billion, eleven million, four hundred thousand, two hundred thirty-one".
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