Base | Representation |
---|---|
bin | 1000010001010101… |
… | …1001100010010001 |
3 | 12201201200221202111 |
4 | 2010111121202101 |
5 | 14021332432004 |
6 | 1004150345321 |
7 | 106006256335 |
oct | 20425314221 |
9 | 5651627674 |
10 | 2220202129 |
11 | a3a2787a2 |
12 | 51b65b241 |
13 | 294c85a92 |
14 | 170c197c5 |
15 | cedaca04 |
hex | 84559891 |
2220202129 has 2 divisors, whose sum is σ = 2220202130. Its totient is φ = 2220202128.
The previous prime is 2220202093. The next prime is 2220202133. The reversal of 2220202129 is 9212020222.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1348358400 + 871843729 = 36720^2 + 29527^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2220202129 is a prime.
It is a super-2 number, since 2×22202021292 = 9858594987232265282, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (2220202199) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110101064 + 1110101065.
It is an arithmetic number, because the mean of its divisors is an integer number (1110101065).
Almost surely, 22220202129 is an apocalyptic number.
It is an amenable number.
2220202129 is a deficient number, since it is larger than the sum of its proper divisors (1).
2220202129 is an equidigital number, since it uses as much as digits as its factorization.
2220202129 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 576, while the sum is 22.
The square root of 2220202129 is about 47119.0208832909. The cubic root of 2220202129 is about 1304.5603406319.
The spelling of 2220202129 in words is "two billion, two hundred twenty million, two hundred two thousand, one hundred twenty-nine".
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