Base | Representation |
---|---|
bin | 10100101100100010… |
… | …101111111100000111 |
3 | 2010100200212211201012 |
4 | 110230202233330013 |
5 | 331002332040424 |
6 | 14113025352435 |
7 | 1414454046422 |
oct | 245442577407 |
9 | 63320784635 |
10 | 22222143239 |
11 | 947390313a |
12 | 438219871b |
13 | 2131b900aa |
14 | 110b4889b9 |
15 | 8a0dadb0e |
hex | 52c8aff07 |
22222143239 has 2 divisors, whose sum is σ = 22222143240. Its totient is φ = 22222143238.
The previous prime is 22222143227. The next prime is 22222143241. The reversal of 22222143239 is 93234122222.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-22222143239 is a prime.
It is a super-2 number, since 2×222221432392 (a number of 21 digits) contains 22 as substring.
Together with 22222143241, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (22222143739) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11111071619 + 11111071620.
It is an arithmetic number, because the mean of its divisors is an integer number (11111071620).
Almost surely, 222222143239 is an apocalyptic number.
22222143239 is a deficient number, since it is larger than the sum of its proper divisors (1).
22222143239 is an equidigital number, since it uses as much as digits as its factorization.
22222143239 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 20736, while the sum is 32.
The spelling of 22222143239 in words is "twenty-two billion, two hundred twenty-two million, one hundred forty-three thousand, two hundred thirty-nine".
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