Base | Representation |
---|---|
bin | 10010111010100101… |
… | …011101100111111001 |
3 | 1221102110022201000111 |
4 | 102322211131213321 |
5 | 313043411031100 |
6 | 13155211104321 |
7 | 1316210202520 |
oct | 227245354771 |
9 | 57373281014 |
10 | 20310252025 |
11 | 8682675a58 |
12 | 3b29a420a1 |
13 | 1bb8a54c0b |
14 | da95a74b7 |
15 | 7dd1026ba |
hex | 4ba95d9f9 |
20310252025 has 48 divisors (see below), whose sum is σ = 28985021824. Its totient is φ = 13829460480.
The previous prime is 20310252023. The next prime is 20310252077. The reversal of 20310252025 is 52025201302.
It is not a de Polignac number, because 20310252025 - 21 = 20310252023 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20310251987 and 20310252005.
It is not an unprimeable number, because it can be changed into a prime (20310252023) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19660909 + ... + 19661941.
Almost surely, 220310252025 is an apocalyptic number.
20310252025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
20310252025 is a deficient number, since it is larger than the sum of its proper divisors (8674769799).
20310252025 is a wasteful number, since it uses less digits than its factorization.
20310252025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1730 (or 1725 counting only the distinct ones).
The product of its (nonzero) digits is 1200, while the sum is 22.
Adding to 20310252025 its reverse (52025201302), we get a palindrome (72335453327).
The spelling of 20310252025 in words is "twenty billion, three hundred ten million, two hundred fifty-two thousand, twenty-five".
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