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20039107 = 11171011061
BaseRepresentation
bin100110001110…
…0010111000011
31101201002111011
41030130113003
520112222412
61553301351
7332221024
oct114342703
941632434
1020039107
1110347750
126864857
1341c817a
142938c4b
151b5c7a7
hex131c5c3

20039107 has 16 divisors (see below), whose sum is σ = 23397984. Its totient is φ = 16960000.

The previous prime is 20039099. The next prime is 20039191. The reversal of 20039107 is 70193002.

It is a cyclic number.

It is not a de Polignac number, because 20039107 - 23 = 20039099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20039207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18357 + ... + 19417.

It is an arithmetic number, because the mean of its divisors is an integer number (1462374).

Almost surely, 220039107 is an apocalyptic number.

20039107 is a deficient number, since it is larger than the sum of its proper divisors (3358877).

20039107 is a wasteful number, since it uses less digits than its factorization.

20039107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 20039107 is about 4476.5061152644. The cubic root of 20039107 is about 271.6185676865.

The spelling of 20039107 in words is "twenty million, thirty-nine thousand, one hundred seven".

Divisors: 1 11 17 101 187 1061 1111 1717 11671 18037 18887 107161 198407 1178771 1821737 20039107