Search a number
-
+
6813105 = 351334939
BaseRepresentation
bin11001111111010110110001
3110211010211020
4121333112301
53221004410
6402010053
7111624165
oct31772661
913733736
106813105
113933872
122346929
131547130
14c94ca5
158e8a70
hex67f5b1

6813105 has 16 divisors (see below), whose sum is σ = 11739840. Its totient is φ = 3354048.

The previous prime is 6813101. The next prime is 6813113. The reversal of 6813105 is 5013186.

It is not a de Polignac number, because 6813105 - 22 = 6813101 is a prime.

6813105 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6813101) 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, 17275 + ... + 17664.

It is an arithmetic number, because the mean of its divisors is an integer number (733740).

Almost surely, 26813105 is an apocalyptic number.

6813105 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6813105 is a deficient number, since it is larger than the sum of its proper divisors (4926735).

6813105 is a wasteful number, since it uses less digits than its factorization.

6813105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34960.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 6813105 is about 2610.1925216351. The cubic root of 6813105 is about 189.5752747316.

The spelling of 6813105 in words is "six million, eight hundred thirteen thousand, one hundred five".

Divisors: 1 3 5 13 15 39 65 195 34939 104817 174695 454207 524085 1362621 2271035 6813105