Base | Representation |
---|---|
bin | 10101111010100011… |
… | …111001110110000000 |
3 | 2020201220212011000200 |
4 | 111322203321312000 |
5 | 341142423200200 |
6 | 14450544245200 |
7 | 1462056533061 |
oct | 257243716600 |
9 | 66656764020 |
10 | 23531068800 |
11 | 9a857472a8 |
12 | 4688610800 |
13 | 22b0101865 |
14 | 11d3250568 |
15 | 92ac63800 |
hex | 57a8f9d80 |
23531068800 has 144 divisors (see below), whose sum is σ = 83964348780. Its totient is φ = 6274944000.
The previous prime is 23531068777. The next prime is 23531068819. The reversal of 23531068800 is 886013532.
It is a tau number, because it is divible by the number of its divisors (144).
It is a super-2 number, since 2×235310688002 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 379726 + ... + 437325.
Almost surely, 223531068800 is an apocalyptic number.
23531068800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23531068800 is an abundant number, since it is smaller than the sum of its proper divisors (60433279980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23531068800 is a wasteful number, since it uses less digits than its factorization.
23531068800 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 817081 (or 817061 counting only the distinct ones).
The product of its (nonzero) digits is 34560, while the sum is 36.
The spelling of 23531068800 in words is "twenty-three billion, five hundred thirty-one million, sixty-eight thousand, eight hundred".
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