Base | Representation |
---|---|
bin | 1011101111000100001110… |
… | …1011101001111010010001 |
3 | 1200200112110101201122222002 |
4 | 2323301003223221322101 |
5 | 3142401242110241023 |
6 | 43235353422523345 |
7 | 2501140516121066 |
oct | 273610353517221 |
9 | 50615411648862 |
10 | 12903217274513 |
11 | 4125250846655 |
12 | 1544891436555 |
13 | 7279ca885207 |
14 | 32873a3a8c6d |
15 | 175997b0db28 |
hex | bbc43ae9e91 |
12903217274513 has 2 divisors, whose sum is σ = 12903217274514. Its totient is φ = 12903217274512.
The previous prime is 12903217274461. The next prime is 12903217274531. The reversal of 12903217274513 is 31547271230921.
Together with next prime (12903217274531) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 12029014714369 + 874202560144 = 3468287^2 + 934988^2 .
It is a cyclic number.
It is not a de Polignac number, because 12903217274513 - 242 = 8505170763409 is a prime.
It is not a weakly prime, because it can be changed into another prime (12903217274593) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6451608637256 + 6451608637257.
It is an arithmetic number, because the mean of its divisors is an integer number (6451608637257).
Almost surely, 212903217274513 is an apocalyptic number.
It is an amenable number.
12903217274513 is a deficient number, since it is larger than the sum of its proper divisors (1).
12903217274513 is an equidigital number, since it uses as much as digits as its factorization.
12903217274513 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 635040, while the sum is 47.
The spelling of 12903217274513 in words is "twelve trillion, nine hundred three billion, two hundred seventeen million, two hundred seventy-four thousand, five hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.082 sec. • engine limits •