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20388192206 = 2173283208217
BaseRepresentation
bin10010111111001110…
…110001111111001110
31221121212222110211212
4102333032301333032
5313223334122311
613211033414422
71321144526414
oct227716617716
957555873755
1020388192206
11871266a628
123b4bb6a412
131bcbc43875
14db5a952b4
157e4d9ac8b
hex4bf3b1fce

20388192206 has 16 divisors (see below), whose sum is σ = 30867902064. Its totient is φ = 10099308864.

The previous prime is 20388192113. The next prime is 20388192217. The reversal of 20388192206 is 60229188302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6191 + ... + 202026.

It is an arithmetic number, because the mean of its divisors is an integer number (1929243879).

Almost surely, 220388192206 is an apocalyptic number.

20388192206 is a deficient number, since it is larger than the sum of its proper divisors (10479709858).

20388192206 is a wasteful number, since it uses less digits than its factorization.

20388192206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208675.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 20388192206 in words is "twenty billion, three hundred eighty-eight million, one hundred ninety-two thousand, two hundred six".

Divisors: 1 2 173 283 346 566 48959 97918 208217 416434 36021541 58925411 72043082 117850822 10194096103 20388192206