Base | Representation |
---|---|
bin | 10101100010101011… |
… | …001000010110001111 |
3 | 2012200222202111100022 |
4 | 111202223020112033 |
5 | 334332324410111 |
6 | 14343110452355 |
7 | 1446122251133 |
oct | 254253102617 |
9 | 65628674308 |
10 | 23130310031 |
11 | 989a503304 |
12 | 45963640bb |
13 | 2248085aaa |
14 | 1195d2d3c3 |
15 | 9059a02db |
hex | 562ac858f |
23130310031 has 4 divisors (see below), whose sum is σ = 23134257000. Its totient is φ = 23126363064.
The previous prime is 23130309989. The next prime is 23130310033. The reversal of 23130310031 is 13001303132.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 23130310031 - 214 = 23130293647 is a prime.
It is a super-2 number, since 2×231303100312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 23130309991 and 23130310009.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23130310033) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1964681 + ... + 1976418.
It is an arithmetic number, because the mean of its divisors is an integer number (5783564250).
Almost surely, 223130310031 is an apocalyptic number.
23130310031 is a deficient number, since it is larger than the sum of its proper divisors (3946969).
23130310031 is an equidigital number, since it uses as much as digits as its factorization.
23130310031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3946968.
The product of its (nonzero) digits is 162, while the sum is 17.
Adding to 23130310031 its reverse (13001303132), we get a palindrome (36131613163).
The spelling of 23130310031 in words is "twenty-three billion, one hundred thirty million, three hundred ten thousand, thirty-one".
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