Base | Representation |
---|---|
bin | 10101011100011010… |
… | …001010111101111100 |
3 | 2012102122222101212222 |
4 | 111130122022331330 |
5 | 334123422413040 |
6 | 14324433544512 |
7 | 1443404656643 |
oct | 253432127574 |
9 | 65378871788 |
10 | 23025201020 |
11 | 9846142358 |
12 | 4567115138 |
13 | 222c373a03 |
14 | 1185dac35a |
15 | 8eb63bbb5 |
hex | 55c68af7c |
23025201020 has 24 divisors (see below), whose sum is σ = 49912695168. Its totient is φ = 8912980800.
The previous prime is 23025201019. The next prime is 23025201037. The reversal of 23025201020 is 2010252032.
It is a super-2 number, since 2×230252010202 (a number of 22 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 23025201020.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18568091 + ... + 18569330.
It is an arithmetic number, because the mean of its divisors is an integer number (2079695632).
Almost surely, 223025201020 is an apocalyptic number.
23025201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23025201020 is an abundant number, since it is smaller than the sum of its proper divisors (26887494148).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23025201020 is a wasteful number, since it uses less digits than its factorization.
23025201020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37137461 (or 37137459 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 17.
Adding to 23025201020 its reverse (2010252032), we get a palindrome (25035453052).
The spelling of 23025201020 in words is "twenty-three billion, twenty-five million, two hundred one thousand, twenty".
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