Search a number
-
+
6854740 = 2251720161
BaseRepresentation
bin11010001001100001010100
3110220020221021
4122021201110
53223322430
6402530524
7112156444
oct32114124
913806837
106854740
113962082
122366a44
131560079
14ca6124
1590607a
hex689854

6854740 has 24 divisors (see below), whose sum is σ = 15242472. Its totient is φ = 2580480.

The previous prime is 6854737. The next prime is 6854761. The reversal of 6854740 is 474586.

It can be written as a sum of positive squares in 4 ways, for example, as 1855044 + 4999696 = 1362^2 + 2236^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 6854696 and 6854705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9741 + ... + 10420.

It is an arithmetic number, because the mean of its divisors is an integer number (635103).

Almost surely, 26854740 is an apocalyptic number.

It is an amenable number.

6854740 is an abundant number, since it is smaller than the sum of its proper divisors (8387732).

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

6854740 is a wasteful number, since it uses less digits than its factorization.

6854740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20187 (or 20185 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 6854740 is about 2618.1558395176. The cubic root of 6854740 is about 189.9606566737.

The spelling of 6854740 in words is "six million, eight hundred fifty-four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 20161 40322 80644 100805 201610 342737 403220 685474 1370948 1713685 3427370 6854740