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6682397 = 23290539
BaseRepresentation
bin11001011111011100011101
3110120111112012
4121133130131
53202314042
6355121005
7110541131
oct31373435
913514465
106682397
113854647
1222a3165
1314cc7a7
14c5d3c1
158bee82
hex65f71d

6682397 has 4 divisors (see below), whose sum is σ = 6972960. Its totient is φ = 6391836.

The previous prime is 6682393. The next prime is 6682409. The reversal of 6682397 is 7932866.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7932866 = 23966433.

It is a cyclic number.

It is not a de Polignac number, because 6682397 - 22 = 6682393 is a prime.

It is a d-powerful number, because it can be written as 66 + 67 + 83 + 2 + 312 + 95 + 78 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6682393) 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, 145247 + ... + 145292.

It is an arithmetic number, because the mean of its divisors is an integer number (1743240).

Almost surely, 26682397 is an apocalyptic number.

It is an amenable number.

6682397 is a deficient number, since it is larger than the sum of its proper divisors (290563).

6682397 is a wasteful number, since it uses less digits than its factorization.

6682397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290562.

The product of its digits is 108864, while the sum is 41.

The square root of 6682397 is about 2585.0332686447. The cubic root of 6682397 is about 188.3551176061.

The spelling of 6682397 in words is "six million, six hundred eighty-two thousand, three hundred ninety-seven".

Divisors: 1 23 290539 6682397