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1344209 = 10113309
BaseRepresentation
bin101001000001011010001
32112021220112
411020023101
5321003314
644451105
714265656
oct5101321
92467815
101344209
11838a19
12549a95
13380ab9
1426dc2d
151b843e
hex1482d1

1344209 has 4 divisors (see below), whose sum is σ = 1357620. Its totient is φ = 1330800.

The previous prime is 1344199. The next prime is 1344227. The reversal of 1344209 is 9024431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 595984 + 748225 = 772^2 + 865^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344209 - 212 = 1340113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1344509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6554 + ... + 6755.

It is an arithmetic number, because the mean of its divisors is an integer number (339405).

21344209 is an apocalyptic number.

It is an amenable number.

1344209 is a deficient number, since it is larger than the sum of its proper divisors (13411).

1344209 is a wasteful number, since it uses less digits than its factorization.

1344209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13410.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1344209 is about 1159.4002760048. The cubic root of 1344209 is about 110.3626871472.

The spelling of 1344209 in words is "one million, three hundred forty-four thousand, two hundred nine".

Divisors: 1 101 13309 1344209