Search a number
-
+
105768 = 233213113
BaseRepresentation
bin11001110100101000
312101002100
4121310220
511341033
62133400
7620235
oct316450
9171070
10105768
1172513
1251260
13391b0
142a78c
1521513
hex19d28

105768 has 48 divisors (see below), whose sum is σ = 311220. Its totient is φ = 32256.

The previous prime is 105767. The next prime is 105769. The reversal of 105768 is 867501.

It is an interprime number because it is at equal distance from previous prime (105767) and next prime (105769).

It can be written as a sum of positive squares in 2 ways, for example, as 79524 + 26244 = 282^2 + 162^2 .

It is a super-2 number, since 2×1057682 = 22373739648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 880 + ... + 992.

2105768 is an apocalyptic number.

105768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155610).

105768 is an abundant number, since it is smaller than the sum of its proper divisors (205452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105768 is a wasteful number, since it uses less digits than its factorization.

105768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 105768 is about 325.2199255888. The cubic root of 105768 is about 47.2916823752.

It can be divided in two parts, 10 and 5768, that added together give a triangular number (5778 = T107).

The spelling of 105768 in words is "one hundred five thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 113 117 156 226 234 312 339 452 468 678 904 936 1017 1356 1469 2034 2712 2938 4068 4407 5876 8136 8814 11752 13221 17628 26442 35256 52884 105768