Base | Representation |
---|---|
bin | 101110111000… |
… | …011111101001 |
3 | 212010101202010 |
4 | 232320133221 |
5 | 11121240100 |
6 | 1115230133 |
7 | 206314656 |
oct | 56703751 |
9 | 25111663 |
10 | 12290025 |
11 | 6a34750 |
12 | 4148349 |
13 | 2714007 |
14 | 18bcc2d |
15 | 112b750 |
hex | bb87e9 |
12290025 has 24 divisors (see below), whose sum is σ = 22168224. Its totient is φ = 5958400.
The previous prime is 12290009. The next prime is 12290071. The reversal of 12290025 is 52009221.
It is not a de Polignac number, because 12290025 - 24 = 12290009 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12289983 and 12290010.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6624 + ... + 8273.
It is an arithmetic number, because the mean of its divisors is an integer number (923676).
Almost surely, 212290025 is an apocalyptic number.
12290025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12290025 is a deficient number, since it is larger than the sum of its proper divisors (9878199).
12290025 is a wasteful number, since it uses less digits than its factorization.
12290025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14921 (or 14916 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 21.
The square root of 12290025 is about 3505.7131942017. The cubic root of 12290025 is about 230.7726065745.
Adding to 12290025 its reverse (52009221), we get a palindrome (64299246).
The spelling of 12290025 in words is "twelve million, two hundred ninety thousand, twenty-five".
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