Base | Representation |
---|---|
bin | 1000011110101100100001 |
3 | 11011221012221 |
4 | 20132230201 |
5 | 1032113011 |
6 | 115351041 |
7 | 24615463 |
oct | 10365441 |
9 | 4157187 |
10 | 2222881 |
11 | 12890a1 |
12 | 8b2481 |
13 | 5caa1b |
14 | 41c133 |
15 | 2dd971 |
hex | 21eb21 |
2222881 has 8 divisors (see below), whose sum is σ = 2340864. Its totient is φ = 2106720.
The previous prime is 2222839. The next prime is 2222893. The reversal of 2222881 is 1882222.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2222881 - 217 = 2091809 is a prime.
It is a super-2 number, since 2×22228812 = 9882399880322, which contains 22 as substring.
2222881 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2222281) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2541 + ... + 3301.
It is an arithmetic number, because the mean of its divisors is an integer number (292608).
22222881 is an apocalyptic number.
It is an amenable number.
2222881 is a deficient number, since it is larger than the sum of its proper divisors (117983).
2222881 is a wasteful number, since it uses less digits than its factorization.
2222881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 911.
The product of its digits is 1024, while the sum is 25.
The square root of 2222881 is about 1490.9329294103. The cubic root of 2222881 is about 130.5084819039.
The spelling of 2222881 in words is "two million, two hundred twenty-two thousand, eight hundred eighty-one".
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