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22805107 = 1329241251
BaseRepresentation
bin101011011111…
…1101001110011
31120220121201121
41112333221303
521314230412
62132443111
7364561123
oct126775163
946817647
1022805107
11119668a6
127779497
134956160
143058c83
152007107
hex15bfa73

22805107 has 16 divisors (see below), whose sum is σ = 25613280. Its totient is φ = 20160000.

The previous prime is 22805087. The next prime is 22805131. The reversal of 22805107 is 70150822.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22805107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22805207) 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 15 ways as a sum of consecutive naturals, for example, 90732 + ... + 90982.

It is an arithmetic number, because the mean of its divisors is an integer number (1600830).

Almost surely, 222805107 is an apocalyptic number.

22805107 is a deficient number, since it is larger than the sum of its proper divisors (2808173).

22805107 is a wasteful number, since it uses less digits than its factorization.

22805107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 22805107 is about 4775.4692963100. The cubic root of 22805107 is about 283.5811578729.

Adding to 22805107 its reverse (70150822), we get a palindrome (92955929).

The spelling of 22805107 in words is "twenty-two million, eight hundred five thousand, one hundred seven".

Divisors: 1 13 29 241 251 377 3133 3263 6989 7279 60491 90857 94627 786383 1754239 22805107