Base | Representation |
---|---|
bin | 101110100100… |
… | …101000000001 |
3 | 211222021002220 |
4 | 232210220001 |
5 | 11111134031 |
6 | 1113401253 |
7 | 205525464 |
oct | 56445001 |
9 | 24867086 |
10 | 12208641 |
11 | 6989595 |
12 | 4109229 |
13 | 26b5c63 |
14 | 189b2db |
15 | 1112596 |
hex | ba4a01 |
12208641 has 8 divisors (see below), whose sum is σ = 16306080. Its totient is φ = 8125152.
The previous prime is 12208627. The next prime is 12208643. The reversal of 12208641 is 14680221.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12208641 - 210 = 12207617 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12208643) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1236 + ... + 5093.
It is an arithmetic number, because the mean of its divisors is an integer number (2038260).
Almost surely, 212208641 is an apocalyptic number.
It is an amenable number.
12208641 is a deficient number, since it is larger than the sum of its proper divisors (4097439).
12208641 is an equidigital number, since it uses as much as digits as its factorization.
12208641 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6975.
The product of its (nonzero) digits is 768, while the sum is 24.
The square root of 12208641 is about 3494.0865759165. The cubic root of 12208641 is about 230.2620893845.
Adding to 12208641 its reverse (14680221), we get a palindrome (26888862).
The spelling of 12208641 in words is "twelve million, two hundred eight thousand, six hundred forty-one".
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