Base | Representation |
---|---|
bin | 10110100010101010… |
… | …11110011001001011 |
3 | 1011020102001102010121 |
4 | 23101111132121023 |
5 | 144241103033001 |
6 | 5320511524111 |
7 | 605620215253 |
oct | 132125363113 |
9 | 34212042117 |
10 | 12102002251 |
11 | 51502a0459 |
12 | 2418b29637 |
13 | 11ab3297a1 |
14 | 82b3b0963 |
15 | 4ac6bd6a1 |
hex | 2d155e64b |
12102002251 has 2 divisors, whose sum is σ = 12102002252. Its totient is φ = 12102002250.
The previous prime is 12102002203. The next prime is 12102002333. The reversal of 12102002251 is 15220020121.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 12102002251 - 29 = 12102001739 is a prime.
It is not a weakly prime, because it can be changed into another prime (12102002051) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051001125 + 6051001126.
It is an arithmetic number, because the mean of its divisors is an integer number (6051001126).
Almost surely, 212102002251 is an apocalyptic number.
12102002251 is a deficient number, since it is larger than the sum of its proper divisors (1).
12102002251 is an equidigital number, since it uses as much as digits as its factorization.
12102002251 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 80, while the sum is 16.
Adding to 12102002251 its reverse (15220020121), we get a palindrome (27322022372).
The spelling of 12102002251 in words is "twelve billion, one hundred two million, two thousand, two hundred fifty-one".
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