Base | Representation |
---|---|
bin | 1110100010101… |
… | …01010001001001 |
3 | 22111112102200122 |
4 | 13101111101021 |
5 | 222211442243 |
6 | 20034313025 |
7 | 3010563461 |
oct | 721252111 |
9 | 274472618 |
10 | 121984073 |
11 | 62947492 |
12 | 34a28775 |
13 | 1c370033 |
14 | 122b4ba1 |
15 | aa98668 |
hex | 7455449 |
121984073 has 2 divisors, whose sum is σ = 121984074. Its totient is φ = 121984072.
The previous prime is 121984001. The next prime is 121984081. The reversal of 121984073 is 370489121.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 112423609 + 9560464 = 10603^2 + 3092^2 .
It is an emirp because it is prime and its reverse (370489121) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 121984073 - 220 = 120935497 is a prime.
It is a super-2 number, since 2×1219840732 = 29760228131338658, which contains 22 as substring.
It is a Sophie Germain prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (121984273) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60992036 + 60992037.
It is an arithmetic number, because the mean of its divisors is an integer number (60992037).
Almost surely, 2121984073 is an apocalyptic number.
It is an amenable number.
121984073 is a deficient number, since it is larger than the sum of its proper divisors (1).
121984073 is an equidigital number, since it uses as much as digits as its factorization.
121984073 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 12096, while the sum is 35.
The square root of 121984073 is about 11044.6400122412. The cubic root of 121984073 is about 495.9459827252.
The spelling of 121984073 in words is "one hundred twenty-one million, nine hundred eighty-four thousand, seventy-three".
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