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2280906 = 23342239
BaseRepresentation
bin1000101100110111001010
311021212211000
420230313022
51040442111
6120515430
725246605
oct10546712
94255730
102280906
111318751
1291bb76
1361b264
1443533c
15300c56
hex22cdca

2280906 has 16 divisors (see below), whose sum is σ = 5068800. Its totient is φ = 760284.

The previous prime is 2280899. The next prime is 2280911. The reversal of 2280906 is 6090822.

2280906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2280906.

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, 21066 + ... + 21173.

It is an arithmetic number, because the mean of its divisors is an integer number (316800).

22280906 is an apocalyptic number.

2280906 is an abundant number, since it is smaller than the sum of its proper divisors (2787894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2280906 is a wasteful number, since it uses less digits than its factorization.

2280906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42250 (or 42244 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2280906 is about 1510.2668638357. The cubic root of 2280906 is about 131.6343184611.

The spelling of 2280906 in words is "two million, two hundred eighty thousand, nine hundred six".

Divisors: 1 2 3 6 9 18 27 54 42239 84478 126717 253434 380151 760302 1140453 2280906