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2228915 = 51353647
BaseRepresentation
bin1000100000001010110011
311012020111102
420200022303
51032311130
6115435015
724642203
oct10401263
94166442
102228915
111292687
128b5a6b
136006b0
14420403
152e0645
hex2202b3

2228915 has 16 divisors (see below), whose sum is σ = 2939328. Its totient is φ = 1612416.

The previous prime is 2228893. The next prime is 2228923. The reversal of 2228915 is 5198222.

It is not a de Polignac number, because 2228915 - 28 = 2228659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3122 + ... + 3768.

It is an arithmetic number, because the mean of its divisors is an integer number (183708).

22228915 is an apocalyptic number.

2228915 is a deficient number, since it is larger than the sum of its proper divisors (710413).

2228915 is a wasteful number, since it uses less digits than its factorization.

2228915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718.

The product of its digits is 2880, while the sum is 29.

The square root of 2228915 is about 1492.9551232371. The cubic root of 2228915 is about 130.6264634345.

The spelling of 2228915 in words is "two million, two hundred twenty-eight thousand, nine hundred fifteen".

Divisors: 1 5 13 53 65 265 647 689 3235 3445 8411 34291 42055 171455 445783 2228915