Base | Representation |
---|---|
bin | 10101100010101011… |
… | …001011010011010011 |
3 | 2012200222210002221110 |
4 | 111202223023103103 |
5 | 334332330302011 |
6 | 14343111024403 |
7 | 1446122331330 |
oct | 254253132323 |
9 | 65628702843 |
10 | 23130322131 |
11 | 989a511404 |
12 | 459636b103 |
13 | 224808b457 |
14 | 1195d33987 |
15 | 9059a3ba6 |
hex | 562acb4d3 |
23130322131 has 16 divisors (see below), whose sum is σ = 35256768768. Its totient is φ = 13213365600.
The previous prime is 23130322129. The next prime is 23130322151. The reversal of 23130322131 is 13122303132.
It is not a de Polignac number, because 23130322131 - 21 = 23130322129 is a prime.
It is a super-2 number, since 2×231303221312 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 23130322098 and 23130322107.
It is not an unprimeable number, because it can be changed into a prime (23130322151) 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, 92580 + ... + 234161.
It is an arithmetic number, because the mean of its divisors is an integer number (2203548048).
Almost surely, 223130322131 is an apocalyptic number.
23130322131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
23130322131 is a deficient number, since it is larger than the sum of its proper divisors (12126446637).
23130322131 is a wasteful number, since it uses less digits than its factorization.
23130322131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 330122.
The product of its (nonzero) digits is 648, while the sum is 21.
Adding to 23130322131 its reverse (13122303132), we get a palindrome (36252625263).
The spelling of 23130322131 in words is "twenty-three billion, one hundred thirty million, three hundred twenty-two thousand, one hundred thirty-one".
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