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2830399 = 111319793
BaseRepresentation
bin1010110011000000111111
312022210120121
422303000333
51211033044
6140355411
733025615
oct12630077
95283517
102830399
111663580
12b45b67
137813c0
145396b5
153ad984
hex2b303f

2830399 has 8 divisors (see below), whose sum is σ = 3325392. Its totient is φ = 2375040.

The previous prime is 2830397. The next prime is 2830433. The reversal of 2830399 is 9930382.

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 2830399 - 21 = 2830397 is a prime.

It is a super-2 number, since 2×28303992 = 16022316998402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2830391) 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, 9754 + ... + 10039.

It is an arithmetic number, because the mean of its divisors is an integer number (415674).

22830399 is an apocalyptic number.

2830399 is a deficient number, since it is larger than the sum of its proper divisors (494993).

2830399 is a wasteful number, since it uses less digits than its factorization.

2830399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19817.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 2830399 is about 1682.3789703869. The cubic root of 2830399 is about 141.4542131905.

The spelling of 2830399 in words is "two million, eight hundred thirty thousand, three hundred ninety-nine".

Divisors: 1 11 13 143 19793 217723 257309 2830399