Base | Representation |
---|---|
bin | 101010001101… |
… | …0111000100111 |
3 | 1112122022221121 |
4 | 1110122320213 |
5 | 21131131330 |
6 | 2110154411 |
7 | 356050402 |
oct | 124327047 |
9 | 45568847 |
10 | 22130215 |
11 | 11545838 |
12 | 74b2a07 |
13 | 477ac03 |
14 | 2d20d39 |
15 | 1e2217a |
hex | 151ae27 |
22130215 has 8 divisors (see below), whose sum is σ = 26696448. Its totient is φ = 17610720.
The previous prime is 22130179. The next prime is 22130221. The reversal of 22130215 is 51203122.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 22130215 - 211 = 22128167 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 7 ways as a sum of consecutive naturals, for example, 10632 + ... + 12541.
It is an arithmetic number, because the mean of its divisors is an integer number (3337056).
Almost surely, 222130215 is an apocalyptic number.
22130215 is a deficient number, since it is larger than the sum of its proper divisors (4566233).
22130215 is a wasteful number, since it uses less digits than its factorization.
22130215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23369.
The product of its (nonzero) digits is 120, while the sum is 16.
The square root of 22130215 is about 4704.2762461403. The cubic root of 22130215 is about 280.7556755537.
Adding to 22130215 its reverse (51203122), we get a palindrome (73333337).
The spelling of 22130215 in words is "twenty-two million, one hundred thirty thousand, two hundred fifteen".
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