Base | Representation |
---|---|
bin | 10101100010101111… |
… | …010101011010100011 |
3 | 2012201001211111010211 |
4 | 111202233111122203 |
5 | 334333120142011 |
6 | 14343150234551 |
7 | 1446134521222 |
oct | 254257253243 |
9 | 65631744124 |
10 | 23131412131 |
11 | 98a0096333 |
12 | 45967b5a57 |
13 | 2248380619 |
14 | 1196138cb9 |
15 | 905b1bb21 |
hex | 562bd56a3 |
23131412131 has 8 divisors (see below), whose sum is σ = 23754813104. Its totient is φ = 22511895840.
The previous prime is 23131412111. The next prime is 23131412149. The reversal of 23131412131 is 13121413132.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 23131412131 - 25 = 23131412099 is a prime.
It is a super-2 number, since 2×231314121312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (23131412111) 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 7 ways as a sum of consecutive naturals, for example, 959100 + ... + 982921.
It is an arithmetic number, because the mean of its divisors is an integer number (2969351638).
Almost surely, 223131412131 is an apocalyptic number.
23131412131 is a deficient number, since it is larger than the sum of its proper divisors (623400973).
23131412131 is a wasteful number, since it uses less digits than its factorization.
23131412131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1942341.
The product of its digits is 432, while the sum is 22.
Adding to 23131412131 its reverse (13121413132), we get a palindrome (36252825263).
The spelling of 23131412131 in words is "twenty-three billion, one hundred thirty-one million, four hundred twelve thousand, one hundred thirty-one".
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