Base | Representation |
---|---|
bin | 101010101101… |
… | …0110100010101 |
3 | 1120010122011111 |
4 | 1111122310111 |
5 | 21213021320 |
6 | 2115535021 |
7 | 361221022 |
oct | 125326425 |
9 | 46118144 |
10 | 22392085 |
11 | 11704561 |
12 | 75ba471 |
13 | 4840171 |
14 | 2d8c549 |
15 | 1e74a5a |
hex | 155ad15 |
22392085 has 4 divisors (see below), whose sum is σ = 26870508. Its totient is φ = 17913664.
The previous prime is 22392049. The next prime is 22392091. The reversal of 22392085 is 58029322.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 17648401 + 4743684 = 4201^2 + 2178^2 .
It is a cyclic number.
It is not a de Polignac number, because 22392085 - 29 = 22391573 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 2239204 + ... + 2239213.
It is an arithmetic number, because the mean of its divisors is an integer number (6717627).
Almost surely, 222392085 is an apocalyptic number.
It is an amenable number.
22392085 is a deficient number, since it is larger than the sum of its proper divisors (4478423).
22392085 is an equidigital number, since it uses as much as digits as its factorization.
22392085 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4478422.
The product of its (nonzero) digits is 8640, while the sum is 31.
The square root of 22392085 is about 4732.0275781107. The cubic root of 22392085 is about 281.8587433656.
The spelling of 22392085 in words is "twenty-two million, three hundred ninety-two thousand, eighty-five".
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