Base | Representation |
---|---|
bin | 101111011101… |
… | …001011100111 |
3 | 212102000212200 |
4 | 233131023213 |
5 | 11141042140 |
6 | 1122345543 |
7 | 210512040 |
oct | 57351347 |
9 | 25360780 |
10 | 12440295 |
11 | 702763a |
12 | 41bb2b3 |
13 | 276752a |
14 | 191b8c7 |
15 | 115b030 |
hex | bdd2e7 |
12440295 has 48 divisors (see below), whose sum is σ = 25027392. Its totient is φ = 5598720.
The previous prime is 12440293. The next prime is 12440317. The reversal of 12440295 is 59204421.
It is not a de Polignac number, because 12440295 - 21 = 12440293 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12440293) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22725 + ... + 23265.
It is an arithmetic number, because the mean of its divisors is an integer number (521404).
Almost surely, 212440295 is an apocalyptic number.
12440295 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
12440295 is an abundant number, since it is smaller than the sum of its proper divisors (12587097).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12440295 is a wasteful number, since it uses less digits than its factorization.
12440295 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 632 (or 629 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 27.
The square root of 12440295 is about 3527.0802372501. The cubic root of 12440295 is about 231.7093504040.
The spelling of 12440295 in words is "twelve million, four hundred forty thousand, two hundred ninety-five".
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