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7230193 = 29249317
BaseRepresentation
bin11011100101001011110001
3111121022221221
4123211023301
53322331233
6414545041
7115312165
oct33451361
914538857
107230193
114099173
122508181
131661c29
14d62ca5
1597c42d
hex6e52f1

7230193 has 4 divisors (see below), whose sum is σ = 7479540. Its totient is φ = 6980848.

The previous prime is 7230173. The next prime is 7230199. The reversal of 7230193 is 3910327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3910327 = 6136379.

It can be written as a sum of positive squares in 2 ways, for example, as 4566769 + 2663424 = 2137^2 + 1632^2 .

It is a cyclic number.

It is not a de Polignac number, because 7230193 - 213 = 7222001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7230199) 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, 124630 + ... + 124687.

It is an arithmetic number, because the mean of its divisors is an integer number (1869885).

Almost surely, 27230193 is an apocalyptic number.

It is an amenable number.

7230193 is a deficient number, since it is larger than the sum of its proper divisors (249347).

7230193 is a wasteful number, since it uses less digits than its factorization.

7230193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249346.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 7230193 is about 2688.9018204464. The cubic root of 7230193 is about 193.3674173624.

Adding to 7230193 its product of nonzero digits (1134), we get a palindrome (7231327).

The spelling of 7230193 in words is "seven million, two hundred thirty thousand, one hundred ninety-three".

Divisors: 1 29 249317 7230193