Base | Representation |
---|---|
bin | 110001001010… |
… | …010100010011 |
3 | 220020202001222 |
4 | 301022110103 |
5 | 11244343230 |
6 | 1140115255 |
7 | 214353230 |
oct | 61122423 |
9 | 26222058 |
10 | 12887315 |
11 | 7302481 |
12 | 4395b2b |
13 | 2892b3c |
14 | 19d6787 |
15 | 11e86e5 |
hex | c4a513 |
12887315 has 16 divisors (see below), whose sum is σ = 18087168. Its totient is φ = 8630496.
The previous prime is 12887299. The next prime is 12887341. The reversal of 12887315 is 51378821.
It is not a de Polignac number, because 12887315 - 24 = 12887299 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (35).
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2777 + ... + 5786.
It is an arithmetic number, because the mean of its divisors is an integer number (1130448).
Almost surely, 212887315 is an apocalyptic number.
12887315 is a deficient number, since it is larger than the sum of its proper divisors (5199853).
12887315 is an equidigital number, since it uses as much as digits as its factorization.
12887315 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8618.
The product of its digits is 13440, while the sum is 35.
The square root of 12887315 is about 3589.8906668588. The cubic root of 12887315 is about 234.4521112788.
The spelling of 12887315 in words is "twelve million, eight hundred eighty-seven thousand, three hundred fifteen".
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