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3440137 = 17202361
BaseRepresentation
bin1101000111111000001001
320110202222111
431013320021
51340041022
6201422321
741145361
oct15077011
96422874
103440137
111a3a698
12119a9a1
13935aac
146579a1
1547e477
hex347e09

3440137 has 4 divisors (see below), whose sum is σ = 3642516. Its totient is φ = 3237760.

The previous prime is 3440131. The next prime is 3440147. The reversal of 3440137 is 7310443.

It is a happy number.

3440137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1320201 + 2119936 = 1149^2 + 1456^2 .

It is a cyclic number.

It is not a de Polignac number, because 3440137 - 219 = 2915849 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3440131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101164 + ... + 101197.

It is an arithmetic number, because the mean of its divisors is an integer number (910629).

Almost surely, 23440137 is an apocalyptic number.

It is an amenable number.

3440137 is a deficient number, since it is larger than the sum of its proper divisors (202379).

3440137 is a wasteful number, since it uses less digits than its factorization.

3440137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202378.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 3440137 is about 1854.7606314563. The cubic root of 3440137 is about 150.9588502405.

The spelling of 3440137 in words is "three million, four hundred forty thousand, one hundred thirty-seven".

Divisors: 1 17 202361 3440137