Base | Representation |
---|---|
bin | 10101011101011110… |
… | …110101111100000100 |
3 | 2012110220211222201022 |
4 | 111131132311330010 |
5 | 334143024442240 |
6 | 14330315450312 |
7 | 1444013664221 |
oct | 253536657404 |
9 | 65426758638 |
10 | 23043202820 |
11 | 9855318380 |
12 | 4571156998 |
13 | 2233007771 |
14 | 1188536948 |
15 | 8ecee59b5 |
hex | 55d7b5f04 |
23043202820 has 48 divisors (see below), whose sum is σ = 52824744000. Its totient is φ = 8373813120.
The previous prime is 23043202807. The next prime is 23043202841. The reversal of 23043202820 is 2820234032.
It is a self number, because there is not a number n which added to its sum of digits gives 23043202820.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306971 + ... + 374589.
It is an arithmetic number, because the mean of its divisors is an integer number (1100515500).
Almost surely, 223043202820 is an apocalyptic number.
23043202820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23043202820 is an abundant number, since it is smaller than the sum of its proper divisors (29781541180).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23043202820 is a wasteful number, since it uses less digits than its factorization.
23043202820 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 69188 (or 69186 counting only the distinct ones).
The product of its (nonzero) digits is 4608, while the sum is 26.
Adding to 23043202820 its reverse (2820234032), we get a palindrome (25863436852).
The spelling of 23043202820 in words is "twenty-three billion, forty-three million, two hundred two thousand, eight hundred twenty".
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