Base | Representation |
---|---|
bin | 10110100010101101… |
… | …00111010101000101 |
3 | 1011020102121120221021 |
4 | 23101112213111011 |
5 | 144241142112442 |
6 | 5320522151141 |
7 | 605622601243 |
oct | 132126472505 |
9 | 34212546837 |
10 | 12102300997 |
11 | 5150484956 |
12 | 24190524b1 |
13 | 11ab402767 |
14 | 82b44b793 |
15 | 4ac72be67 |
hex | 2d15a7545 |
12102300997 has 4 divisors (see below), whose sum is σ = 12300699436. Its totient is φ = 11903902560.
The previous prime is 12102300979. The next prime is 12102301007. The reversal of 12102300997 is 79900320121.
It is a happy number.
12102300997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79900320121 = 91459 ⋅873619.
It can be written as a sum of positive squares in 2 ways, for example, as 4821774721 + 7280526276 = 69439^2 + 85326^2 .
It is a cyclic number.
It is not a de Polignac number, because 12102300997 - 227 = 11968083269 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 (12102330997) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99199128 + ... + 99199249.
It is an arithmetic number, because the mean of its divisors is an integer number (3075174859).
Almost surely, 212102300997 is an apocalyptic number.
It is an amenable number.
12102300997 is a deficient number, since it is larger than the sum of its proper divisors (198398439).
12102300997 is an equidigital number, since it uses as much as digits as its factorization.
12102300997 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 198398438.
The product of its (nonzero) digits is 6804, while the sum is 34.
The spelling of 12102300997 in words is "twelve billion, one hundred two million, three hundred thousand, nine hundred ninety-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •