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20013194 = 2192831861
BaseRepresentation
bin100110001011…
…0000010001010
31101122202221102
41030112002022
520110410234
61552541402
7332052335
oct114260212
941582842
1020013194
111032a233
126851862
1341b9436
14292d61c
151b54c7e
hex131608a

20013194 has 16 divisors (see below), whose sum is σ = 31728480. Its totient is φ = 9441360.

The previous prime is 20013193. The next prime is 20013221. The reversal of 20013194 is 49131002.

It is not an unprimeable number, because it can be changed into a prime (20013193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9824 + ... + 11684.

It is an arithmetic number, because the mean of its divisors is an integer number (1983030).

Almost surely, 220013194 is an apocalyptic number.

20013194 is a deficient number, since it is larger than the sum of its proper divisors (11715286).

20013194 is a wasteful number, since it uses less digits than its factorization.

20013194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 20013194 is about 4473.6108458381. The cubic root of 20013194 is about 271.5014385818.

Adding to 20013194 its reverse (49131002), we get a palindrome (69144196).

The spelling of 20013194 in words is "twenty million, thirteen thousand, one hundred ninety-four".

Divisors: 1 2 19 38 283 566 1861 3722 5377 10754 35359 70718 526663 1053326 10006597 20013194