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3289284 = 223291369
BaseRepresentation
bin1100100011000011000100
320012010001100
430203003010
51320224114
6154300100
736646515
oct14430304
96163040
103289284
111947319
121127630
138b222b
14618a0c
1544e909
hex3230c4

3289284 has 18 divisors (see below), whose sum is σ = 8314670. Its totient is φ = 1096416.

The previous prime is 3289283. The next prime is 3289291. The reversal of 3289284 is 4829823.

It can be written as a sum of positive squares in only one way, i.e., 3240000 + 49284 = 1800^2 + 222^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 91369 = 3289284 / (3 + 2 + 8 + 9 + 2 + 8 + 4).

It is not an unprimeable number, because it can be changed into a prime (3289283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45649 + ... + 45720.

Almost surely, 23289284 is an apocalyptic number.

It is an amenable number.

3289284 is an abundant number, since it is smaller than the sum of its proper divisors (5025386).

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

3289284 is a wasteful number, since it uses less digits than its factorization.

3289284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91379 (or 91374 counting only the distinct ones).

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

The square root of 3289284 is about 1813.6383321931. The cubic root of 3289284 is about 148.7192286230.

Subtracting from 3289284 its product of digits (27648), we obtain a square (3261636 = 18062).

The spelling of 3289284 in words is "three million, two hundred eighty-nine thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 18 36 91369 182738 274107 365476 548214 822321 1096428 1644642 3289284