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2205489 = 311135397
BaseRepresentation
bin1000011010011100110001
311011001100210
420122130301
51031033424
6115134333
724513666
oct10323461
94131323
102205489
111277020
128a43a9
135c2b30
14415a6d
152d8729
hex21a731

2205489 has 32 divisors (see below), whose sum is σ = 3556224. Its totient is φ = 1198080.

The previous prime is 2205487. The next prime is 2205503. The reversal of 2205489 is 9845022.

It is not a de Polignac number, because 2205489 - 21 = 2205487 is a prime.

2205489 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205481) 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, 22689 + ... + 22785.

It is an arithmetic number, because the mean of its divisors is an integer number (111132).

22205489 is an apocalyptic number.

It is an amenable number.

2205489 is a deficient number, since it is larger than the sum of its proper divisors (1350735).

2205489 is a wasteful number, since it uses less digits than its factorization.

2205489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2205489 is about 1485.0888862287. The cubic root of 2205489 is about 130.1672207070.

The spelling of 2205489 in words is "two million, two hundred five thousand, four hundred eighty-nine".

Divisors: 1 3 11 13 33 39 53 97 143 159 291 429 583 689 1067 1261 1749 2067 3201 3783 5141 7579 13871 15423 22737 41613 56551 66833 169653 200499 735163 2205489