Base | Representation |
---|---|
bin | 10110100010011011… |
… | …10101110110110001 |
3 | 1011020021021202012122 |
4 | 23101031311312301 |
5 | 144240100014301 |
6 | 5320401004025 |
7 | 605564212301 |
oct | 132115656661 |
9 | 34207252178 |
10 | 12100001201 |
11 | 514a153aa2 |
12 | 2418323615 |
13 | 11aaaa8a32 |
14 | 82b00d601 |
15 | 4ac42581b |
hex | 2d1375db1 |
12100001201 has 4 divisors (see below), whose sum is σ = 12245784432. Its totient is φ = 11954217972.
The previous prime is 12100001159. The next prime is 12100001203. The reversal of 12100001201 is 10210000121.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 12100001201 - 210 = 12100000177 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12100001203) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72891491 + ... + 72891656.
It is an arithmetic number, because the mean of its divisors is an integer number (3061446108).
Almost surely, 212100001201 is an apocalyptic number.
It is an amenable number.
12100001201 is a deficient number, since it is larger than the sum of its proper divisors (145783231).
12100001201 is an equidigital number, since it uses as much as digits as its factorization.
12100001201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 145783230.
The product of its (nonzero) digits is 4, while the sum is 8.
Adding to 12100001201 its reverse (10210000121), we get a palindrome (22310001322).
It can be divided in two parts, 1210000120 and 1, that added together give a palindrome (1210000121).
The spelling of 12100001201 in words is "twelve billion, one hundred million, one thousand, two hundred one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •