Base | Representation |
---|---|
bin | 100110001100… |
… | …0011011110001 |
3 | 1101200021102112 |
4 | 1030120123301 |
5 | 20111214100 |
6 | 1553055105 |
7 | 332123111 |
oct | 114303361 |
9 | 41607375 |
10 | 20023025 |
11 | 10336660 |
12 | 6857495 |
13 | 41c0a59 |
14 | 2933041 |
15 | 1b57b35 |
hex | 13186f1 |
20023025 has 24 divisors (see below), whose sum is σ = 28685664. Its totient is φ = 13702400.
The previous prime is 20023009. The next prime is 20023027. The reversal of 20023025 is 52032002.
It is not a de Polignac number, because 20023025 - 24 = 20023009 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (20023027) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2534 + ... + 6816.
It is an arithmetic number, because the mean of its divisors is an integer number (1195236).
Almost surely, 220023025 is an apocalyptic number.
20023025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
20023025 is a deficient number, since it is larger than the sum of its proper divisors (8662639).
20023025 is a wasteful number, since it uses less digits than its factorization.
20023025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4321 (or 4316 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 14.
The square root of 20023025 is about 4474.7094877768. The cubic root of 20023025 is about 271.5458874875.
Adding to 20023025 its reverse (52032002), we get a palindrome (72055027).
The spelling of 20023025 in words is "twenty million, twenty-three thousand, twenty-five".
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