Base | Representation |
---|---|
bin | 10111011101101011… |
… | …10110110011000111 |
3 | 1012111220112102122220 |
4 | 23232311312303013 |
5 | 201244314430322 |
6 | 5441554023423 |
7 | 624110663145 |
oct | 135665666307 |
9 | 35456472586 |
10 | 12597030087 |
11 | 5384771174 |
12 | 2536877b73 |
13 | 1259a60675 |
14 | 877030595 |
15 | 4dada355c |
hex | 2eed76cc7 |
12597030087 has 4 divisors (see below), whose sum is σ = 16796040120. Its totient is φ = 8398020056.
The previous prime is 12597030053. The next prime is 12597030091. The reversal of 12597030087 is 78003079521.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78003079521 = 3 ⋅26001026507.
It is a cyclic number.
It is not a de Polignac number, because 12597030087 - 214 = 12597013703 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12597030097) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2099505012 + ... + 2099505017.
It is an arithmetic number, because the mean of its divisors is an integer number (4199010030).
Almost surely, 212597030087 is an apocalyptic number.
12597030087 is a deficient number, since it is larger than the sum of its proper divisors (4199010033).
12597030087 is an equidigital number, since it uses as much as digits as its factorization.
12597030087 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4199010032.
The product of its (nonzero) digits is 105840, while the sum is 42.
The spelling of 12597030087 in words is "twelve billion, five hundred ninety-seven million, thirty thousand, eighty-seven".
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