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3028289 = 11275299
BaseRepresentation
bin1011100011010101000001
312200212000212
423203111001
51233401124
6144523505
734511555
oct13432501
95625025
103028289
111789220
121020595
138204b4
1458b865
153ec40e
hex2e3541

3028289 has 4 divisors (see below), whose sum is σ = 3303600. Its totient is φ = 2752980.

The previous prime is 3028271. The next prime is 3028313. The reversal of 3028289 is 9828203.

It is a happy number.

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 3028289 - 28 = 3028033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3028229) 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, 137639 + ... + 137660.

It is an arithmetic number, because the mean of its divisors is an integer number (825900).

Almost surely, 23028289 is an apocalyptic number.

It is an amenable number.

3028289 is a deficient number, since it is larger than the sum of its proper divisors (275311).

3028289 is a wasteful number, since it uses less digits than its factorization.

3028289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275310.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 3028289 is about 1740.1979772428. The cubic root of 3028289 is about 144.6768706185.

The spelling of 3028289 in words is "three million, twenty-eight thousand, two hundred eighty-nine".

Divisors: 1 11 275299 3028289