Base | Representation |
---|---|
bin | 10101100010101111… |
… | …000001011010110110 |
3 | 2012201001200022210110 |
4 | 111202233001122312 |
5 | 334333110031410 |
6 | 14343144403450 |
7 | 1446134030361 |
oct | 254257013266 |
9 | 65631608713 |
10 | 23131330230 |
11 | 98a003a848 |
12 | 4596776586 |
13 | 2248352268 |
14 | 11961170d8 |
15 | 905b02720 |
hex | 562bc16b6 |
23131330230 has 64 divisors (see below), whose sum is σ = 57949032960. Its totient is φ = 5898114816.
The previous prime is 23131330169. The next prime is 23131330237. The reversal of 23131330230 is 3203313132.
It is a junction number, because it is equal to n+sod(n) for n = 23131330197 and 23131330206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23131330237) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3570274 + ... + 3576746.
It is an arithmetic number, because the mean of its divisors is an integer number (905453640).
Almost surely, 223131330230 is an apocalyptic number.
23131330230 is an abundant number, since it is smaller than the sum of its proper divisors (34817702730).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23131330230 is a wasteful number, since it uses less digits than its factorization.
23131330230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11685.
The product of its (nonzero) digits is 972, while the sum is 21.
Adding to 23131330230 its reverse (3203313132), we get a palindrome (26334643362).
The spelling of 23131330230 in words is "twenty-three billion, one hundred thirty-one million, three hundred thirty thousand, two hundred thirty".
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