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6780369 = 34352561
BaseRepresentation
bin11001110111010111010001
3110202110220210
4121313113101
53213432434
6401154333
7111426561
oct31672721
913673823
106780369
113911212
12232b9a9
13153526b
14c86da1
158ddee9
hex6775d1

6780369 has 8 divisors (see below), whose sum is σ = 9250912. Its totient is φ = 4415040.

The previous prime is 6780329. The next prime is 6780379. The reversal of 6780369 is 9630876.

6780369 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6780369 - 216 = 6714833 is a prime.

It is a super-2 number, since 2×67803692 = 91946807552322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6780329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26152 + ... + 26409.

It is an arithmetic number, because the mean of its divisors is an integer number (1156364).

Almost surely, 26780369 is an apocalyptic number.

It is an amenable number.

6780369 is a deficient number, since it is larger than the sum of its proper divisors (2470543).

6780369 is a wasteful number, since it uses less digits than its factorization.

6780369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52607.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 6780369 is about 2603.9141690924. The cubic root of 6780369 is about 189.2711597278.

The spelling of 6780369 in words is "six million, seven hundred eighty thousand, three hundred sixty-nine".

Divisors: 1 3 43 129 52561 157683 2260123 6780369