Search a number
-
+
7290634 = 213280409
BaseRepresentation
bin11011110011111100001010
3111201101212111
4123303330022
53331300014
6420132534
7115653331
oct33637412
914641774
107290634
11412a61a
12253714a
1316835b0
14d7ad18
159902c4
hex6f3f0a

7290634 has 8 divisors (see below), whose sum is σ = 11777220. Its totient is φ = 3364896.

The previous prime is 7290631. The next prime is 7290641. The reversal of 7290634 is 4360927.

It can be written as a sum of positive squares in 2 ways, for example, as 5508409 + 1782225 = 2347^2 + 1335^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 7290596 and 7290605.

It is not an unprimeable number, because it can be changed into a prime (7290631) 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, 140179 + ... + 140230.

Almost surely, 27290634 is an apocalyptic number.

7290634 is a deficient number, since it is larger than the sum of its proper divisors (4486586).

7290634 is a wasteful number, since it uses less digits than its factorization.

7290634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280424.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 7290634 is about 2700.1174048548. The cubic root of 7290634 is about 193.9047429753.

The spelling of 7290634 in words is "seven million, two hundred ninety thousand, six hundred thirty-four".

Divisors: 1 2 13 26 280409 560818 3645317 7290634