Base | Representation |
---|---|
bin | 101100101100… |
… | …0010001010001 |
3 | 1122002101020010 |
4 | 1121120101101 |
5 | 21444231400 |
6 | 2154105133 |
7 | 403103460 |
oct | 131302121 |
9 | 48071203 |
10 | 23430225 |
11 | 12253525 |
12 | 7a1b1a9 |
13 | 4b14850 |
14 | 317c9d7 |
15 | 20cc450 |
hex | 1658451 |
23430225 has 48 divisors (see below), whose sum is σ = 47691392. Its totient is φ = 9884160.
The previous prime is 23430223. The next prime is 23430263. The reversal of 23430225 is 52203432.
It is not a de Polignac number, because 23430225 - 21 = 23430223 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is not an unprimeable number, because it can be changed into a prime (23430221) 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, 5109 + ... + 8541.
Almost surely, 223430225 is an apocalyptic number.
23430225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
23430225 is an abundant number, since it is smaller than the sum of its proper divisors (24261167).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23430225 is a wasteful number, since it uses less digits than its factorization.
23430225 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3466 (or 3461 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 21.
The square root of 23430225 is about 4840.4777656756. The cubic root of 23430225 is about 286.1489476324.
Adding to 23430225 its reverse (52203432), we get a palindrome (75633657).
The spelling of 23430225 in words is "twenty-three million, four hundred thirty thousand, two hundred twenty-five".
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