Search a number
-
+
7425313 = 72151537
BaseRepresentation
bin11100010100110100100001
3111222020121121
4130110310201
53400102223
6423052241
7120054100
oct34246441
914866547
107425313
114211825
1225a1081
1316cc99c
14db4037
159ba15d
hex714d21

7425313 has 6 divisors (see below), whose sum is σ = 8637666. Its totient is φ = 6364512.

The previous prime is 7425307. The next prime is 7425329. The reversal of 7425313 is 3135247.

It can be written as a sum of positive squares in only one way, i.e., 6671889 + 753424 = 2583^2 + 868^2 .

It is not a de Polignac number, because 7425313 - 25 = 7425281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7422313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75720 + ... + 75817.

It is an arithmetic number, because the mean of its divisors is an integer number (1439611).

Almost surely, 27425313 is an apocalyptic number.

It is an amenable number.

7425313 is a deficient number, since it is larger than the sum of its proper divisors (1212353).

7425313 is a wasteful number, since it uses less digits than its factorization.

7425313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151551 (or 151544 counting only the distinct ones).

The product of its digits is 2520, while the sum is 25.

The square root of 7425313 is about 2724.9427516922. The cubic root of 7425313 is about 195.0914583031.

The spelling of 7425313 in words is "seven million, four hundred twenty-five thousand, three hundred thirteen".

Divisors: 1 7 49 151537 1060759 7425313