Base | Representation |
---|---|
bin | 101011110101… |
… | …0100100001101 |
3 | 1121020112211121 |
4 | 1113222210031 |
5 | 21340342002 |
6 | 2140320541 |
7 | 366222433 |
oct | 127524415 |
9 | 47215747 |
10 | 22980877 |
11 | 11a76967 |
12 | 7843151 |
13 | 49b816a |
14 | 30a2d53 |
15 | 203e237 |
hex | 15ea90d |
22980877 has 4 divisors (see below), whose sum is σ = 23515360. Its totient is φ = 22446396.
The previous prime is 22980871. The next prime is 22980907. The reversal of 22980877 is 77808922.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77808922 = 2 ⋅38904461.
It is a cyclic number.
It is not a de Polignac number, because 22980877 - 211 = 22978829 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 534439 = 22980877 / (2 + 2 + 9 + 8 + 0 + 8 + 7 + 7).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22980871) 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 3 ways as a sum of consecutive naturals, for example, 267177 + ... + 267262.
It is an arithmetic number, because the mean of its divisors is an integer number (5878840).
Almost surely, 222980877 is an apocalyptic number.
It is an amenable number.
22980877 is a deficient number, since it is larger than the sum of its proper divisors (534483).
22980877 is an equidigital number, since it uses as much as digits as its factorization.
22980877 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 534482.
The product of its (nonzero) digits is 112896, while the sum is 43.
The square root of 22980877 is about 4793.8373981603. The cubic root of 22980877 is about 284.3078598007.
The spelling of 22980877 in words is "twenty-two million, nine hundred eighty thousand, eight hundred seventy-seven".
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