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22842041 = 212910729
BaseRepresentation
bin101011100100…
…0101010111001
31120222111101112
41113020222321
521321421131
62133330105
7365103605
oct127105271
946874345
1022842041
1111991622
127796935
134969c01
143068505
15201302b
hex15c8ab9

22842041 has 4 divisors (see below), whose sum is σ = 22854900. Its totient is φ = 22829184.

The previous prime is 22842031. The next prime is 22842091. The reversal of 22842041 is 14024822.

22842041 = 33792 + 33802.

It is a happy number.

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 11417641 + 11424400 = 3379^2 + 3380^2 .

It is a cyclic number.

It is not a de Polignac number, because 22842041 - 214 = 22825657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22841998 and 22842016.

It is not an unprimeable number, because it can be changed into a prime (22842031) 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, 3236 + ... + 7493.

It is an arithmetic number, because the mean of its divisors is an integer number (5713725).

Almost surely, 222842041 is an apocalyptic number.

22842041 is the 3380-th centered square number.

It is an amenable number.

22842041 is a deficient number, since it is larger than the sum of its proper divisors (12859).

22842041 is a wasteful number, since it uses less digits than its factorization.

22842041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12858.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 22842041 is about 4779.3347863484. The cubic root of 22842041 is about 283.7341665433.

Adding to 22842041 its reverse (14024822), we get a palindrome (36866863).

The spelling of 22842041 in words is "twenty-two million, eight hundred forty-two thousand, forty-one".

Divisors: 1 2129 10729 22842041