Base | Representation |
---|---|
bin | 110111111110100110… |
… | …1001100001001101001 |
3 | 102111021210111000021111 |
4 | 1233331031030021221 |
5 | 3432143311212111 |
6 | 131120312510321 |
7 | 11453653633162 |
oct | 1577515141151 |
9 | 374253430244 |
10 | 120212210281 |
11 | 46a88727919 |
12 | 1b36a9ab3a1 |
13 | b44a158297 |
14 | 5b655c6769 |
15 | 31d8922a21 |
hex | 1bfd34c269 |
120212210281 has 2 divisors, whose sum is σ = 120212210282. Its totient is φ = 120212210280.
The previous prime is 120212210263. The next prime is 120212210329. The reversal of 120212210281 is 182012212021.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 120211984656 + 225625 = 346716^2 + 475^2 .
It is a cyclic number.
It is not a de Polignac number, because 120212210281 - 215 = 120212177513 is a prime.
It is a super-2 number, since 2×1202122102812 (a number of 23 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (120212210221) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60106105140 + 60106105141.
It is an arithmetic number, because the mean of its divisors is an integer number (60106105141).
Almost surely, 2120212210281 is an apocalyptic number.
It is an amenable number.
120212210281 is a deficient number, since it is larger than the sum of its proper divisors (1).
120212210281 is an equidigital number, since it uses as much as digits as its factorization.
120212210281 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 256, while the sum is 22.
The spelling of 120212210281 in words is "one hundred twenty billion, two hundred twelve million, two hundred ten thousand, two hundred eighty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •