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6668830 = 257472027
BaseRepresentation
bin11001011100001000011110
3110112210220201
4121130020132
53201400310
6354534114
7110453440
oct31341036
913483821
106668830
113845433
12229733a
1314c656c
14c58490
158bae3a
hex65c21e

6668830 has 32 divisors (see below), whose sum is σ = 14017536. Its totient is φ = 2236704.

The previous prime is 6668821. The next prime is 6668833. The reversal of 6668830 is 388666.

6668830 = T236 + T237 + ... + T375.

It is a self number, because there is not a number n which added to its sum of digits gives 6668830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6668833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2277 + ... + 4303.

It is an arithmetic number, because the mean of its divisors is an integer number (438048).

Almost surely, 26668830 is an apocalyptic number.

6668830 is an abundant number, since it is smaller than the sum of its proper divisors (7348706).

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

6668830 is a wasteful number, since it uses less digits than its factorization.

6668830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 6668830 is about 2582.4077911902. The cubic root of 6668830 is about 188.2275613207.

The spelling of 6668830 in words is "six million, six hundred sixty-eight thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 14 35 47 70 94 235 329 470 658 1645 2027 3290 4054 10135 14189 20270 28378 70945 95269 141890 190538 476345 666883 952690 1333766 3334415 6668830