Search a number
-
+
3130031 is a prime number
BaseRepresentation
bin1011111100001010101111
312220000121002
423330022233
51300130111
6151030515
735414312
oct13741257
95800532
103130031
111848703
12106b43b
138578b8
145b6979
1541c63b
hex2fc2af

3130031 has 2 divisors, whose sum is σ = 3130032. Its totient is φ = 3130030.

The previous prime is 3130027. The next prime is 3130037. The reversal of 3130031 is 1300313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3130031 - 22 = 3130027 is a prime.

It is a super-2 number, since 2×31300312 = 19594188121922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3129994 and 3130021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3130037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565015 + 1565016.

It is an arithmetic number, because the mean of its divisors is an integer number (1565016).

Almost surely, 23130031 is an apocalyptic number.

3130031 is a deficient number, since it is larger than the sum of its proper divisors (1).

3130031 is an equidigital number, since it uses as much as digits as its factorization.

3130031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27, while the sum is 11.

The square root of 3130031 is about 1769.1893623917. The cubic root of 3130031 is about 146.2793020889.

Adding to 3130031 its reverse (1300313), we get a palindrome (4430344).

It can be divided in two parts, 3 and 130031, that multiplied together give a palindrome (390093).

The spelling of 3130031 in words is "three million, one hundred thirty thousand, thirty-one".