Search a number
-
+
117812806 = 21917331789
BaseRepresentation
bin1110000010110…
…10111001000110
322012200111210021
413001122321012
5220130002211
615405045354
72630251366
oct701327106
9265614707
10117812806
1160558561
123355685a
131b53c527
141190a9a6
15a522771
hex705ae46

117812806 has 16 divisors (see below), whose sum is σ = 186231600. Its totient is φ = 55742688.

The previous prime is 117812801. The next prime is 117812837. The reversal of 117812806 is 608218711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117812801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64960 + ... + 66748.

It is an arithmetic number, because the mean of its divisors is an integer number (11639475).

Almost surely, 2117812806 is an apocalyptic number.

117812806 is a deficient number, since it is larger than the sum of its proper divisors (68418794).

117812806 is a wasteful number, since it uses less digits than its factorization.

117812806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3543.

The product of its (nonzero) digits is 5376, while the sum is 34.

The square root of 117812806 is about 10854.1607690323. The cubic root of 117812806 is about 490.2273081145.

The spelling of 117812806 in words is "one hundred seventeen million, eight hundred twelve thousand, eight hundred six".

Divisors: 1 2 19 38 1733 1789 3466 3578 32927 33991 65854 67982 3100337 6200674 58906403 117812806