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2828445 = 35188563
BaseRepresentation
bin1010110010100010011101
312022200220020
422302202131
51211002240
6140342353
733020124
oct12624235
95280806
102828445
111662064
12b449b9
13780549
14538abb
153ad0d0
hex2b289d

2828445 has 8 divisors (see below), whose sum is σ = 4525536. Its totient is φ = 1508496.

The previous prime is 2828431. The next prime is 2828453. The reversal of 2828445 is 5448282.

It is a happy number.

2828445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2828445 - 24 = 2828429 is a prime.

It is a super-2 number, since 2×28284452 = 16000202236050, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 94267 + ... + 94296.

It is an arithmetic number, because the mean of its divisors is an integer number (565692).

22828445 is an apocalyptic number.

It is an amenable number.

2828445 is a deficient number, since it is larger than the sum of its proper divisors (1697091).

2828445 is a wasteful number, since it uses less digits than its factorization.

2828445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188571.

The product of its digits is 20480, while the sum is 33.

The square root of 2828445 is about 1681.7981448438. The cubic root of 2828445 is about 141.4216541576.

The spelling of 2828445 in words is "two million, eight hundred twenty-eight thousand, four hundred forty-five".

Divisors: 1 3 5 15 188563 565689 942815 2828445