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6680653 = 7954379
BaseRepresentation
bin11001011111000001001101
3110120102010121
4121133001031
53202240103
6355104541
7110533060
oct31370115
913512117
106680653
113853301
1222a2151
1314cba65
14c5c8d7
158be6bd
hex65f04d

6680653 has 4 divisors (see below), whose sum is σ = 7635040. Its totient is φ = 5726268.

The previous prime is 6680651. The next prime is 6680657. The reversal of 6680653 is 3560866.

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.

It is a cyclic number.

It is not a de Polignac number, because 6680653 - 21 = 6680651 is a prime.

It is a super-2 number, since 2×66806532 = 89262249012818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6680651) 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, 477183 + ... + 477196.

It is an arithmetic number, because the mean of its divisors is an integer number (1908760).

Almost surely, 26680653 is an apocalyptic number.

It is an amenable number.

6680653 is a deficient number, since it is larger than the sum of its proper divisors (954387).

6680653 is an equidigital number, since it uses as much as digits as its factorization.

6680653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954386.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 6680653 is about 2584.6959202196. The cubic root of 6680653 is about 188.3387302776.

The spelling of 6680653 in words is "six million, six hundred eighty thousand, six hundred fifty-three".

Divisors: 1 7 954379 6680653