Base | Representation |
---|---|
bin | 110000101000… |
… | …110100000111 |
3 | 212222202211110 |
4 | 300220310013 |
5 | 11231000322 |
6 | 1133140103 |
7 | 213242160 |
oct | 60506407 |
9 | 25882743 |
10 | 12750087 |
11 | 7219369 |
12 | 432a633 |
13 | 284553c |
14 | 199c767 |
15 | 11bcc0c |
hex | c28d07 |
12750087 has 8 divisors (see below), whose sum is σ = 19428736. Its totient is φ = 7285752.
The previous prime is 12750071. The next prime is 12750091. The reversal of 12750087 is 78005721.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12750087 - 24 = 12750071 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12751087) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303553 + ... + 303594.
It is an arithmetic number, because the mean of its divisors is an integer number (2428592).
Almost surely, 212750087 is an apocalyptic number.
12750087 is a deficient number, since it is larger than the sum of its proper divisors (6678649).
12750087 is an equidigital number, since it uses as much as digits as its factorization.
12750087 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 607157.
The product of its (nonzero) digits is 3920, while the sum is 30.
The square root of 12750087 is about 3570.7263966874. The cubic root of 12750087 is about 233.6169677794.
The spelling of 12750087 in words is "twelve million, seven hundred fifty thousand, eighty-seven".
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