Base | Representation |
---|---|
bin | 101011110101… |
… | …0110111110011 |
3 | 1121020121120001 |
4 | 1113222313303 |
5 | 21340412011 |
6 | 2140330431 |
7 | 366226204 |
oct | 127526763 |
9 | 47217501 |
10 | 22982131 |
11 | 11a778a7 |
12 | 7843a17 |
13 | 49b88c3 |
14 | 30a35ab |
15 | 203e7c1 |
hex | 15eadf3 |
22982131 has 4 divisors (see below), whose sum is σ = 23128672. Its totient is φ = 22835592.
The previous prime is 22982117. The next prime is 22982137. The reversal of 22982131 is 13128922.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13128922 = 2 ⋅6564461.
It is a cyclic number.
It is not a de Polignac number, because 22982131 - 29 = 22981619 is a prime.
It is a super-2 number, since 2×229821312 = 1056356690602322, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 22982131.
It is not an unprimeable number, because it can be changed into a prime (22982137) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73035 + ... + 73348.
It is an arithmetic number, because the mean of its divisors is an integer number (5782168).
Almost surely, 222982131 is an apocalyptic number.
22982131 is a deficient number, since it is larger than the sum of its proper divisors (146541).
22982131 is a wasteful number, since it uses less digits than its factorization.
22982131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 146540.
The product of its digits is 1728, while the sum is 28.
The square root of 22982131 is about 4793.9681892979. The cubic root of 22982131 is about 284.3130309926.
The spelling of 22982131 in words is "twenty-two million, nine hundred eighty-two thousand, one hundred thirty-one".
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