Base | Representation |
---|---|
bin | 101111010101… |
… | …011100110001 |
3 | 212100102102201 |
4 | 233111130301 |
5 | 11134034000 |
6 | 1121543201 |
7 | 210320515 |
oct | 57253461 |
9 | 25312381 |
10 | 12408625 |
11 | 7005869 |
12 | 41a4b01 |
13 | 2755ca8 |
14 | 1910145 |
15 | 115196a |
hex | bd5731 |
12408625 has 16 divisors (see below), whose sum is σ = 15786576. Its totient is φ = 9734400.
The previous prime is 12408619. The next prime is 12408631. The reversal of 12408625 is 52680421.
12408625 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (12408619) and next prime (12408631).
It can be written as a sum of positive squares in 8 ways, for example, as 6411024 + 5997601 = 2532^2 + 2449^2 .
It is not a de Polignac number, because 12408625 - 223 = 4020017 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12408593 and 12408602.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5689 + ... + 7561.
It is an arithmetic number, because the mean of its divisors is an integer number (986661).
Almost surely, 212408625 is an apocalyptic number.
It is an amenable number.
12408625 is a deficient number, since it is larger than the sum of its proper divisors (3377951).
12408625 is an equidigital number, since it uses as much as digits as its factorization.
12408625 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1941 (or 1931 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 28.
The square root of 12408625 is about 3522.5878271521. The cubic root of 12408625 is about 231.5125578821.
The spelling of 12408625 in words is "twelve million, four hundred eight thousand, six hundred twenty-five".
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