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2828215 = 51323347
BaseRepresentation
bin1010110010011110110111
312022200120201
422302132313
51211000330
6140341331
733016345
oct12623667
95280521
102828215
111661975
12b44847
13780400
14538995
153aceca
hex2b27b7

2828215 has 12 divisors (see below), whose sum is σ = 3676104. Its totient is φ = 2087904.

The previous prime is 2828209. The next prime is 2828219. The reversal of 2828215 is 5128282.

It is not a de Polignac number, because 2828215 - 25 = 2828183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2828219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 829 + ... + 2518.

It is an arithmetic number, because the mean of its divisors is an integer number (306342).

22828215 is an apocalyptic number.

2828215 is a deficient number, since it is larger than the sum of its proper divisors (847889).

2828215 is a wasteful number, since it uses less digits than its factorization.

2828215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378 (or 3365 counting only the distinct ones).

The product of its digits is 2560, while the sum is 28.

The square root of 2828215 is about 1681.7297642606. The cubic root of 2828215 is about 141.4178207365.

The spelling of 2828215 in words is "two million, eight hundred twenty-eight thousand, two hundred fifteen".

Divisors: 1 5 13 65 169 845 3347 16735 43511 217555 565643 2828215