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2213009 = 17349373
BaseRepresentation
bin1000011100010010010001
311011102200022
420130102101
51031304014
6115233225
724544631
oct10342221
94142608
102213009
111281737
128a8815
135c6396
144186c1
152daa8e
hex21c491

2213009 has 8 divisors (see below), whose sum is σ = 2356200. Its totient is φ = 2071296.

The previous prime is 2212979. The next prime is 2213033. The reversal of 2213009 is 9003122.

It can be written as a sum of positive squares in 4 ways, for example, as 883600 + 1329409 = 940^2 + 1153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2213009 - 28 = 2212753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (2213039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5747 + ... + 6119.

It is an arithmetic number, because the mean of its divisors is an integer number (294525).

22213009 is an apocalyptic number.

It is an amenable number.

2213009 is a deficient number, since it is larger than the sum of its proper divisors (143191).

2213009 is a wasteful number, since it uses less digits than its factorization.

2213009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2213009 is about 1487.6185667032. The cubic root of 2213009 is about 130.3149955049.

It can be divided in two parts, 22 and 13009, that added together give a palindrome (13031).

The spelling of 2213009 in words is "two million, two hundred thirteen thousand, nine".

Divisors: 1 17 349 373 5933 6341 130177 2213009