Base | Representation |
---|---|
bin | 100110101000… |
… | …0010101111001 |
3 | 1102002220120000 |
4 | 1031100111321 |
5 | 20141031100 |
6 | 2002023213 |
7 | 334065543 |
oct | 115202571 |
9 | 42086500 |
10 | 20252025 |
11 | 10482712 |
12 | 6947b09 |
13 | 4271061 |
14 | 2992693 |
15 | 1ba0900 |
hex | 1350579 |
20252025 has 60 divisors (see below), whose sum is σ = 38305212. Its totient is φ = 10575360.
The previous prime is 20252017. The next prime is 20252027. The reversal of 20252025 is 52025202.
It can be written as a sum of positive squares in 6 ways, for example, as 82944 + 20169081 = 288^2 + 4491^2 .
It is not a de Polignac number, because 20252025 - 23 = 20252017 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 20251989 and 20252007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20252027) by changing a digit.
It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 147757 + ... + 147893.
Almost surely, 220252025 is an apocalyptic number.
20252025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
20252025 is a deficient number, since it is larger than the sum of its proper divisors (18053187).
20252025 is a wasteful number, since it uses less digits than its factorization.
20252025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 232 (or 218 counting only the distinct ones).
The product of its (nonzero) digits is 400, while the sum is 18.
The square root of 20252025 is about 4500.2249943753. The cubic root of 20252025 is about 272.5771742249.
Adding to 20252025 its reverse (52025202), we get a palindrome (72277227).
The spelling of 20252025 in words is "twenty million, two hundred fifty-two thousand, twenty-five".
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