Base | Representation |
---|---|
bin | 100110101110… |
… | …0011100000000 |
3 | 1102012102111221 |
4 | 1031130130000 |
5 | 20144122233 |
6 | 2003044424 |
7 | 334363150 |
oct | 115343400 |
9 | 42172457 |
10 | 20301568 |
11 | 10506961 |
12 | 6970714 |
13 | 428a781 |
14 | 29a6760 |
15 | 1bb042d |
hex | 135c700 |
20301568 has 36 divisors (see below), whose sum is σ = 46317040. Its totient is φ = 8699904.
The previous prime is 20301563. The next prime is 20301623. The reversal of 20301568 is 86510302.
It is a happy number.
It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20301563) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3873 + ... + 7456.
Almost surely, 220301568 is an apocalyptic number.
20301568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
20301568 is an abundant number, since it is smaller than the sum of its proper divisors (26015472).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20301568 is an equidigital number, since it uses as much as digits as its factorization.
20301568 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11352 (or 11338 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 25.
The square root of 20301568 is about 4505.7261345981. The cubic root of 20301568 is about 272.7992638502.
The spelling of 20301568 in words is "twenty million, three hundred one thousand, five hundred sixty-eight".
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