Base | Representation |
---|---|
bin | 10110100010100100… |
… | …11101001100001101 |
3 | 1011020100120012121001 |
4 | 23101102131030031 |
5 | 144240402222033 |
6 | 5320442540301 |
7 | 605610411142 |
oct | 132122351415 |
9 | 34210505531 |
10 | 12101210893 |
11 | 514a8aa942 |
12 | 2418807691 |
13 | 11ab110525 |
14 | 82b2463c9 |
15 | 4ac5b3e7d |
hex | 2d149d30d |
12101210893 has 2 divisors, whose sum is σ = 12101210894. Its totient is φ = 12101210892.
The previous prime is 12101210881. The next prime is 12101210897. The reversal of 12101210893 is 39801210121.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 6563916324 + 5537294569 = 81018^2 + 74413^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12101210893 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12101210897) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050605446 + 6050605447.
It is an arithmetic number, because the mean of its divisors is an integer number (6050605447).
Almost surely, 212101210893 is an apocalyptic number.
It is an amenable number.
12101210893 is a deficient number, since it is larger than the sum of its proper divisors (1).
12101210893 is an equidigital number, since it uses as much as digits as its factorization.
12101210893 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 864, while the sum is 28.
The spelling of 12101210893 in words is "twelve billion, one hundred one million, two hundred ten thousand, eight hundred ninety-three".
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