Base | Representation |
---|---|
bin | 101010011100… |
… | …1010100101101 |
3 | 1112212122222022 |
4 | 1110321110231 |
5 | 21144124033 |
6 | 2112555525 |
7 | 360110033 |
oct | 124712455 |
9 | 45778868 |
10 | 22254893 |
11 | 11620481 |
12 | 7552ba5 |
13 | 47c289b |
14 | 2d54553 |
15 | 1e49098 |
hex | 153952d |
22254893 has 8 divisors (see below), whose sum is σ = 22531608. Its totient is φ = 21980224.
The previous prime is 22254889. The next prime is 22254899. The reversal of 22254893 is 39845222.
It can be written as a sum of positive squares in 4 ways, for example, as 11744329 + 10510564 = 3427^2 + 3242^2 .
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 22254893 - 22 = 22254889 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22254899) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33755 + ... + 34407.
It is an arithmetic number, because the mean of its divisors is an integer number (2816451).
Almost surely, 222254893 is an apocalyptic number.
It is an amenable number.
22254893 is a deficient number, since it is larger than the sum of its proper divisors (276715).
22254893 is a wasteful number, since it uses less digits than its factorization.
22254893 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1023.
The product of its digits is 34560, while the sum is 35.
The square root of 22254893 is about 4717.5091944796. The cubic root of 22254893 is about 281.2819323085.
The spelling of 22254893 in words is "twenty-two million, two hundred fifty-four thousand, eight hundred ninety-three".
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