Search a number
-
+
20108675 = 525913633
BaseRepresentation
bin100110010110…
…1010110000011
31101211121220202
41030231112003
520121434200
61554555415
7332630606
oct114552603
941747822
1020108675
1110394a44
126898b6b
134220a32
14295633d
151b731d5
hex132d583

20108675 has 12 divisors (see below), whose sum is σ = 25359240. Its totient is φ = 15813120.

The previous prime is 20108657. The next prime is 20108729. The reversal of 20108675 is 57680102.

It is not a de Polignac number, because 20108675 - 28 = 20108419 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5342 + ... + 8291.

It is an arithmetic number, because the mean of its divisors is an integer number (2113270).

Almost surely, 220108675 is an apocalyptic number.

20108675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20108675 is a deficient number, since it is larger than the sum of its proper divisors (5250565).

20108675 is a wasteful number, since it uses less digits than its factorization.

20108675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13702 (or 13697 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 20108675 is about 4484.2697287295. The cubic root of 20108675 is about 271.9325227297.

Adding to 20108675 its reverse (57680102), we get a palindrome (77788777).

The spelling of 20108675 in words is "twenty million, one hundred eight thousand, six hundred seventy-five".

Divisors: 1 5 25 59 295 1475 13633 68165 340825 804347 4021735 20108675