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20860107 = 326172657
BaseRepresentation
bin100111110010…
…0110011001011
31110020210200120
41033210303023
520320010412
62023034323
7342210432
oct117446313
943223616
1020860107
1110858564
126b9b9a3
134424a78
142ab0119
151c70b8c
hex13e4ccb

20860107 has 8 divisors (see below), whose sum is σ = 27834576. Its totient is φ = 13896192.

The previous prime is 20860097. The next prime is 20860163. The reversal of 20860107 is 70106802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20860107 - 214 = 20843723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20860507) 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, 6523 + ... + 9179.

It is an arithmetic number, because the mean of its divisors is an integer number (3479322).

Almost surely, 220860107 is an apocalyptic number.

20860107 is a deficient number, since it is larger than the sum of its proper divisors (6974469).

20860107 is a wasteful number, since it uses less digits than its factorization.

20860107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5277.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 20860107 is about 4567.2866124210. The cubic root of 20860107 is about 275.2784265490.

Adding to 20860107 its reverse (70106802), we get a palindrome (90966909).

The spelling of 20860107 in words is "twenty million, eight hundred sixty thousand, one hundred seven".

Divisors: 1 3 2617 2657 7851 7971 6953369 20860107