Base | Representation |
---|---|
bin | 101111101101… |
… | …101110001101 |
3 | 212112110210221 |
4 | 233231232031 |
5 | 11200224140 |
6 | 1124031341 |
7 | 211213414 |
oct | 57555615 |
9 | 25473727 |
10 | 12508045 |
11 | 7073530 |
12 | 4232551 |
13 | 278c314 |
14 | 193847b |
15 | 117114a |
hex | bedb8d |
12508045 has 8 divisors (see below), whose sum is σ = 16374240. Its totient is φ = 9096720.
The previous prime is 12508031. The next prime is 12508049. The reversal of 12508045 is 54080521.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12508045 - 215 = 12475277 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12508049) 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, 113655 + ... + 113764.
It is an arithmetic number, because the mean of its divisors is an integer number (2046780).
Almost surely, 212508045 is an apocalyptic number.
It is an amenable number.
12508045 is a deficient number, since it is larger than the sum of its proper divisors (3866195).
12508045 is a wasteful number, since it uses less digits than its factorization.
12508045 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 227435.
The product of its (nonzero) digits is 1600, while the sum is 25.
The square root of 12508045 is about 3536.6714577410. The cubic root of 12508045 is about 232.1292197793.
Adding to 12508045 its reverse (54080521), we get a palindrome (66588566).
The spelling of 12508045 in words is "twelve million, five hundred eight thousand, forty-five".
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