Search a number
-
+
7074209 = 10964901
BaseRepresentation
bin11010111111000110100001
3111022101222202
4122333012201
53302333314
6411342545
7114062342
oct32770641
914271882
107074209
113aa1a5a
122451a55
131608c2c
14d220c9
1594b0de
hex6bf1a1

7074209 has 4 divisors (see below), whose sum is σ = 7139220. Its totient is φ = 7009200.

The previous prime is 7074203. The next prime is 7074217. The reversal of 7074209 is 9024707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9024707 = 37243911.

It can be written as a sum of positive squares in 2 ways, for example, as 5536609 + 1537600 = 2353^2 + 1240^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7074209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7074203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32342 + ... + 32559.

It is an arithmetic number, because the mean of its divisors is an integer number (1784805).

Almost surely, 27074209 is an apocalyptic number.

It is an amenable number.

7074209 is a deficient number, since it is larger than the sum of its proper divisors (65011).

7074209 is a wasteful number, since it uses less digits than its factorization.

7074209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65010.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 7074209 is about 2659.7385209828. The cubic root of 7074209 is about 191.9667278138.

The spelling of 7074209 in words is "seven million, seventy-four thousand, two hundred nine".

Divisors: 1 109 64901 7074209