Base | Representation |
---|---|
bin | 101111100110011101… |
… | …0000100001010010101 |
3 | 100202212000202201101202 |
4 | 1133030322010022111 |
5 | 3133322314140034 |
6 | 114543220402245 |
7 | 10246104562424 |
oct | 1371472041225 |
9 | 322760681352 |
10 | 102222021269 |
11 | 3a396736615 |
12 | 17989b46385 |
13 | 9840c81524 |
14 | 4d3a1d12bb |
15 | 29d435647e |
hex | 17cce84295 |
102222021269 has 2 divisors, whose sum is σ = 102222021270. Its totient is φ = 102222021268.
The previous prime is 102222021257. The next prime is 102222021283. The reversal of 102222021269 is 962120222201.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 95125980625 + 7096040644 = 308425^2 + 84238^2 .
It is an emirp because it is prime and its reverse (962120222201) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 102222021269 - 228 = 101953585813 is a prime.
It is a super-2 number, since 2×1022220212692 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (102222021569) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51111010634 + 51111010635.
It is an arithmetic number, because the mean of its divisors is an integer number (51111010635).
Almost surely, 2102222021269 is an apocalyptic number.
It is an amenable number.
102222021269 is a deficient number, since it is larger than the sum of its proper divisors (1).
102222021269 is an equidigital number, since it uses as much as digits as its factorization.
102222021269 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3456, while the sum is 29.
The spelling of 102222021269 in words is "one hundred two billion, two hundred twenty-two million, twenty-one thousand, two hundred sixty-nine".
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