Base | Representation |
---|---|
bin | 101110010000… |
… | …010000010111 |
3 | 211211000122202 |
4 | 232100100113 |
5 | 11101001312 |
6 | 1111515115 |
7 | 205030313 |
oct | 56202027 |
9 | 24730582 |
10 | 12125207 |
11 | 6931936 |
12 | 4088a9b |
13 | 2686ca3 |
14 | 1878b43 |
15 | 10e79c2 |
hex | b90417 |
12125207 has 2 divisors, whose sum is σ = 12125208. Its totient is φ = 12125206.
The previous prime is 12125189. The next prime is 12125231. The reversal of 12125207 is 70252121.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 12125207 - 210 = 12124183 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12125237) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6062603 + 6062604.
It is an arithmetic number, because the mean of its divisors is an integer number (6062604).
Almost surely, 212125207 is an apocalyptic number.
12125207 is a deficient number, since it is larger than the sum of its proper divisors (1).
12125207 is an equidigital number, since it uses as much as digits as its factorization.
12125207 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 280, while the sum is 20.
The square root of 12125207 is about 3482.1267926369. The cubic root of 12125207 is about 229.7363519611.
Adding to 12125207 its reverse (70252121), we get a palindrome (82377328).
The spelling of 12125207 in words is "twelve million, one hundred twenty-five thousand, two hundred seven".
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