Base | Representation |
---|---|
bin | 10101100010101011… |
… | …001101011111111011 |
3 | 2012200222210120021210 |
4 | 111202223031133323 |
5 | 334332331044011 |
6 | 14343111134203 |
7 | 1446122366505 |
oct | 254253153773 |
9 | 65628716253 |
10 | 23130331131 |
11 | 989a518146 |
12 | 4596374363 |
13 | 224809258b |
14 | 1195d36d75 |
15 | 9059a66a6 |
hex | 562acd7fb |
23130331131 has 16 divisors (see below), whose sum is σ = 32528720000. Its totient is φ = 14579336448.
The previous prime is 23130331117. The next prime is 23130331171. The reversal of 23130331131 is 13113303132.
It is not a de Polignac number, because 23130331131 - 210 = 23130330107 is a prime.
It is a super-2 number, since 2×231303311312 (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 = 23130331098 and 23130331107.
It is not an unprimeable number, because it can be changed into a prime (23130331171) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378166 + ... + 435051.
It is an arithmetic number, because the mean of its divisors is an integer number (2033045000).
Almost surely, 223130331131 is an apocalyptic number.
23130331131 is a deficient number, since it is larger than the sum of its proper divisors (9398388869).
23130331131 is a wasteful number, since it uses less digits than its factorization.
23130331131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 813738.
The product of its (nonzero) digits is 486, while the sum is 21.
Adding to 23130331131 its reverse (13113303132), we get a palindrome (36243634263).
The spelling of 23130331131 in words is "twenty-three billion, one hundred thirty million, three hundred thirty-one thousand, one hundred thirty-one".
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