Base | Representation |
---|---|
bin | 11010100100011… |
… | …10000101000101 |
3 | 120112101110222101 |
4 | 31102032011011 |
5 | 424024130234 |
6 | 34041032101 |
7 | 5344310056 |
oct | 1522160505 |
9 | 515343871 |
10 | 222880069 |
11 | 1048a0105 |
12 | 62785631 |
13 | 372385c9 |
14 | 2185a72d |
15 | 14878814 |
hex | d48e145 |
222880069 has 2 divisors, whose sum is σ = 222880070. Its totient is φ = 222880068.
The previous prime is 222880061. The next prime is 222880117. The reversal of 222880069 is 960088222.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 111830625 + 111049444 = 10575^2 + 10538^2 .
It is a cyclic number.
It is not a de Polignac number, because 222880069 - 23 = 222880061 is a prime.
It is a super-2 number, since 2×2228800692 = 99351050314889522, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (222880061) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111440034 + 111440035.
It is an arithmetic number, because the mean of its divisors is an integer number (111440035).
Almost surely, 2222880069 is an apocalyptic number.
It is an amenable number.
222880069 is a deficient number, since it is larger than the sum of its proper divisors (1).
222880069 is an equidigital number, since it uses as much as digits as its factorization.
222880069 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 27648, while the sum is 37.
The square root of 222880069 is about 14929.1683961298. The cubic root of 222880069 is about 606.3039689228.
The spelling of 222880069 in words is "two hundred twenty-two million, eight hundred eighty thousand, sixty-nine".
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