Base | Representation |
---|---|
bin | 101011110101… |
… | …0010111100111 |
3 | 1121020111201202 |
4 | 1113222113213 |
5 | 21340330241 |
6 | 2140313115 |
7 | 366220202 |
oct | 127522747 |
9 | 47214652 |
10 | 22980071 |
11 | 11a762a4 |
12 | 784279b |
13 | 49b799a |
14 | 30a2939 |
15 | 203dd9b |
hex | 15ea5e7 |
22980071 has 4 divisors (see below), whose sum is σ = 23601192. Its totient is φ = 22358952.
The previous prime is 22980047. The next prime is 22980119. The reversal of 22980071 is 17008922.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 22980071 - 214 = 22963687 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 (22980011) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310505 + ... + 310578.
It is an arithmetic number, because the mean of its divisors is an integer number (5900298).
Almost surely, 222980071 is an apocalyptic number.
22980071 is a deficient number, since it is larger than the sum of its proper divisors (621121).
22980071 is an equidigital number, since it uses as much as digits as its factorization.
22980071 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 621120.
The product of its (nonzero) digits is 2016, while the sum is 29.
The square root of 22980071 is about 4793.7533311592. The cubic root of 22980071 is about 284.3045359529.
Adding to 22980071 its reverse (17008922), we get a palindrome (39988993).
The spelling of 22980071 in words is "twenty-two million, nine hundred eighty thousand, seventy-one".
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