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2275989 = 33124473
BaseRepresentation
bin1000101011101010010101
311021122001220
420223222111
51040312424
6120440553
725226352
oct10535225
94248056
102275989
111314a91
12919159
13618c51
14433629
152ee579
hex22ba95

2275989 has 8 divisors (see below), whose sum is σ = 3132672. Its totient is φ = 1468320.

The previous prime is 2275961. The next prime is 2275993. The reversal of 2275989 is 9895722.

2275989 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 2275989 - 28 = 2275733 is a prime.

2275989 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2275989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2275289) by changing a digit.

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, 12144 + ... + 12329.

It is an arithmetic number, because the mean of its divisors is an integer number (391584).

22275989 is an apocalyptic number.

It is an amenable number.

2275989 is a deficient number, since it is larger than the sum of its proper divisors (856683).

2275989 is a wasteful number, since it uses less digits than its factorization.

2275989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24507.

The product of its digits is 90720, while the sum is 42.

The square root of 2275989 is about 1508.6381275839. The cubic root of 2275989 is about 131.5396613970.

It can be divided in two parts, 227 and 5989, that added together give a triangular number (6216 = T111).

The spelling of 2275989 in words is "two million, two hundred seventy-five thousand, nine hundred eighty-nine".

Divisors: 1 3 31 93 24473 73419 758663 2275989