Base | Representation |
---|---|
bin | 101111111101… |
… | …110110011101 |
3 | 212122211102202 |
4 | 233331312131 |
5 | 11204332414 |
6 | 1125301245 |
7 | 211610132 |
oct | 57756635 |
9 | 25584382 |
10 | 12574109 |
11 | 7109129 |
12 | 4264825 |
13 | 27b3402 |
14 | 1954589 |
15 | 11859de |
hex | bfdd9d |
12574109 has 2 divisors, whose sum is σ = 12574110. Its totient is φ = 12574108.
The previous prime is 12574099. The next prime is 12574141. The reversal of 12574109 is 90147521.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 8868484 + 3705625 = 2978^2 + 1925^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12574109 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12577109) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6287054 + 6287055.
It is an arithmetic number, because the mean of its divisors is an integer number (6287055).
Almost surely, 212574109 is an apocalyptic number.
It is an amenable number.
12574109 is a deficient number, since it is larger than the sum of its proper divisors (1).
12574109 is an equidigital number, since it uses as much as digits as its factorization.
12574109 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2520, while the sum is 29.
The square root of 12574109 is about 3545.9990129722. Note that the first 3 decimals coincide. The cubic root of 12574109 is about 232.5371829382.
The spelling of 12574109 in words is "twelve million, five hundred seventy-four thousand, one hundred nine".
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