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7230131 is a prime number
BaseRepresentation
bin11011100101001010110011
3111121022212122
4123211022303
53322331011
6414544455
7115312046
oct33451263
914538778
107230131
114099117
12250812b
131661bac
14d62c5d
1597c3db
hex6e52b3

7230131 has 2 divisors, whose sum is σ = 7230132. Its totient is φ = 7230130.

The previous prime is 7230121. The next prime is 7230137. The reversal of 7230131 is 1310327.

It is a strong prime.

It is an emirp because it is prime and its reverse (1310327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7230131 - 214 = 7213747 is a prime.

It is a super-2 number, since 2×72301312 = 104549588554322, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (7230137) 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 as a sum of consecutive naturals, namely, 3615065 + 3615066.

It is an arithmetic number, because the mean of its divisors is an integer number (3615066).

Almost surely, 27230131 is an apocalyptic number.

7230131 is a deficient number, since it is larger than the sum of its proper divisors (1).

7230131 is an equidigital number, since it uses as much as digits as its factorization.

7230131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 7230131 is about 2688.8902915515. The cubic root of 7230131 is about 193.3668646425.

Adding to 7230131 its reverse (1310327), we get a palindrome (8540458).

It can be divided in two parts, 72 and 30131, that added together give a palindrome (30203).

The spelling of 7230131 in words is "seven million, two hundred thirty thousand, one hundred thirty-one".