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22130206 = 278917761
BaseRepresentation
bin101010001101…
…0111000011110
31112122022221021
41110122320132
521131131311
62110154354
7356050360
oct124327036
945568837
1022130206
111154582a
1274b29ba
13477abc7
142d20d30
151e22171
hex151ae1e

22130206 has 16 divisors (see below), whose sum is σ = 38365920. Its totient is φ = 9377280.

The previous prime is 22130179. The next prime is 22130221. The reversal of 22130206 is 60203122.

It is a self number, because there is not a number n which added to its sum of digits gives 22130206.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7635 + ... + 10126.

It is an arithmetic number, because the mean of its divisors is an integer number (2397870).

Almost surely, 222130206 is an apocalyptic number.

22130206 is a deficient number, since it is larger than the sum of its proper divisors (16235714).

22130206 is a wasteful number, since it uses less digits than its factorization.

22130206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17859.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 22130206 is about 4704.2752895637. The cubic root of 22130206 is about 280.7556374941.

Adding to 22130206 its reverse (60203122), we get a palindrome (82333328).

The spelling of 22130206 in words is "twenty-two million, one hundred thirty thousand, two hundred six".

Divisors: 1 2 7 14 89 178 623 1246 17761 35522 124327 248654 1580729 3161458 11065103 22130206