Search a number
-
+
6750820 = 225337541
BaseRepresentation
bin11001110000001001100100
3110200222101101
4121300021210
53212011240
6400405444
7111244456
oct31601144
913628341
106750820
1138a0a9a
122316884
13152498b
14c7a2d6
158d539a
hex670264

6750820 has 12 divisors (see below), whose sum is σ = 14176764. Its totient is φ = 2700320.

The previous prime is 6750817. The next prime is 6750827. The reversal of 6750820 is 280576.

It can be written as a sum of positive squares in 2 ways, for example, as 3481956 + 3268864 = 1866^2 + 1808^2 .

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (6750827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168751 + ... + 168790.

It is an arithmetic number, because the mean of its divisors is an integer number (1181397).

Almost surely, 26750820 is an apocalyptic number.

It is an amenable number.

6750820 is an abundant number, since it is smaller than the sum of its proper divisors (7425944).

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

6750820 is a wasteful number, since it uses less digits than its factorization.

6750820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337550 (or 337548 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 6750820 is about 2598.2340156345. The cubic root of 6750820 is about 188.9958100281.

It can be divided in two parts, 67508 and 20, that added together give a triangular number (67528 = T367).

The spelling of 6750820 in words is "six million, seven hundred fifty thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 337541 675082 1350164 1687705 3375410 6750820