Base | Representation |
---|---|
bin | 10101111001001001… |
… | …000010111101001100 |
3 | 2020200021001002011200 |
4 | 111321021002331030 |
5 | 341120324013040 |
6 | 14444333545500 |
7 | 1461350223351 |
oct | 257111027514 |
9 | 66607032150 |
10 | 23507251020 |
11 | 9a73259690 |
12 | 4680645290 |
13 | 22a81b27b6 |
14 | 11d0010628 |
15 | 928b0b630 |
hex | 579242f4c |
23507251020 has 144 divisors (see below), whose sum is σ = 80297118720. Its totient is φ = 5514883200.
The previous prime is 23507250971. The next prime is 23507251021. The reversal of 23507251020 is 2015270532.
It is not an unprimeable number, because it can be changed into a prime (23507251021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 130110 + ... + 252869.
It is an arithmetic number, because the mean of its divisors is an integer number (557618880).
Almost surely, 223507251020 is an apocalyptic number.
23507251020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23507251020 is an abundant number, since it is smaller than the sum of its proper divisors (56789867700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23507251020 is a wasteful number, since it uses less digits than its factorization.
23507251020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 383036 (or 383031 counting only the distinct ones).
The product of its (nonzero) digits is 4200, while the sum is 27.
The spelling of 23507251020 in words is "twenty-three billion, five hundred seven million, two hundred fifty-one thousand, twenty".
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