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30413231 is a prime number
BaseRepresentation
bin111010000000…
…1000110101111
32010020011002222
41310001012233
530241210411
63003505555
7516336212
oct164010657
963204088
1030413231
1116192a02
12a2282bb
1363bb0c4
144079779
152a0b4db
hex1d011af

30413231 has 2 divisors, whose sum is σ = 30413232. Its totient is φ = 30413230.

The previous prime is 30413213. The next prime is 30413269. The reversal of 30413231 is 13231403.

It is a happy number.

Together with previous prime (30413213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30413231 is a prime.

It is a super-2 number, since 2×304132312 = 1849929239718722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30410231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15206615 + 15206616.

It is an arithmetic number, because the mean of its divisors is an integer number (15206616).

Almost surely, 230413231 is an apocalyptic number.

30413231 is a deficient number, since it is larger than the sum of its proper divisors (1).

30413231 is an equidigital number, since it uses as much as digits as its factorization.

30413231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 30413231 is about 5514.8192173452. The cubic root of 30413231 is about 312.1434217610.

Adding to 30413231 its reverse (13231403), we get a palindrome (43644634).

The spelling of 30413231 in words is "thirty million, four hundred thirteen thousand, two hundred thirty-one".