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2284389 = 33196173
BaseRepresentation
bin1000101101101101100101
311022001121000
420231231211
51041100024
6120543513
725263012
oct10555545
94261530
102284389
111320328
12921b99
1361ca13
14436709
15301cc9
hex22db65

2284389 has 32 divisors (see below), whose sum is σ = 3670400. Its totient is φ = 1399680.

The previous prime is 2284379. The next prime is 2284391. The reversal of 2284389 is 9834822.

It is not a de Polignac number, because 2284389 - 25 = 2284357 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2284339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31257 + ... + 31329.

It is an arithmetic number, because the mean of its divisors is an integer number (114700).

22284389 is an apocalyptic number.

It is an amenable number.

2284389 is a deficient number, since it is larger than the sum of its proper divisors (1386011).

2284389 is a wasteful number, since it uses less digits than its factorization.

2284389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 156 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 2284389 is about 1511.4195314339. The cubic root of 2284389 is about 131.7012873406.

The spelling of 2284389 in words is "two million, two hundred eighty-four thousand, three hundred eighty-nine".

Divisors: 1 3 9 19 27 57 61 73 171 183 219 513 549 657 1159 1387 1647 1971 3477 4161 4453 10431 12483 13359 31293 37449 40077 84607 120231 253821 761463 2284389