Base | Representation |
---|---|
bin | 110001010011… |
… | …100011010111 |
3 | 220022122222000 |
4 | 301103203113 |
5 | 11302101033 |
6 | 1141010343 |
7 | 214601430 |
oct | 61234327 |
9 | 26278860 |
10 | 12925143 |
11 | 7328940 |
12 | 43b39b3 |
13 | 28a711a |
14 | 1a06487 |
15 | 1204a13 |
hex | c538d7 |
12925143 has 32 divisors (see below), whose sum is σ = 23877120. Its totient is φ = 6713280.
The previous prime is 12925139. The next prime is 12925169. The reversal of 12925143 is 34152921.
It is not a de Polignac number, because 12925143 - 22 = 12925139 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12925343) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1030 + ... + 5187.
It is an arithmetic number, because the mean of its divisors is an integer number (746160).
Almost surely, 212925143 is an apocalyptic number.
12925143 is a deficient number, since it is larger than the sum of its proper divisors (10951977).
12925143 is a wasteful number, since it uses less digits than its factorization.
12925143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6244 (or 6238 counting only the distinct ones).
The product of its digits is 2160, while the sum is 27.
The square root of 12925143 is about 3595.1554903787. The cubic root of 12925143 is about 234.6812821350.
The spelling of 12925143 in words is "twelve million, nine hundred twenty-five thousand, one hundred forty-three".
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