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6680429 = 78910723
BaseRepresentation
bin11001011110111101101101
3110120101211022
4121132331231
53202233204
6355103525
7110532320
oct31367555
913511738
106680429
113853118
1222a1ba5
1314cb922
14c5c7b7
158be5be
hex65ef6d

6680429 has 8 divisors (see below), whose sum is σ = 7721280. Its totient is φ = 5661216.

The previous prime is 6680413. The next prime is 6680431. The reversal of 6680429 is 9240866.

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

It is a cyclic number.

It is not a de Polignac number, because 6680429 - 24 = 6680413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6680489) 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, 4739 + ... + 5984.

It is an arithmetic number, because the mean of its divisors is an integer number (965160).

Almost surely, 26680429 is an apocalyptic number.

It is an amenable number.

6680429 is a deficient number, since it is larger than the sum of its proper divisors (1040851).

6680429 is a wasteful number, since it uses less digits than its factorization.

6680429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10819.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 6680429 is about 2584.6525878733. The cubic root of 6680429 is about 188.3366252764.

The spelling of 6680429 in words is "six million, six hundred eighty thousand, four hundred twenty-nine".

Divisors: 1 7 89 623 10723 75061 954347 6680429