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30134231 is a prime number
BaseRepresentation
bin111001011110…
…0111111010111
32002200222101122
41302330333113
530203243411
62553514155
7514064621
oct162747727
962628348
1030134231
1116012326
12a11295b
13632110a
144005c11
1529a39db
hex1cbcfd7

30134231 has 2 divisors, whose sum is σ = 30134232. Its totient is φ = 30134230.

The previous prime is 30134197. The next prime is 30134239. The reversal of 30134231 is 13243103.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30134231 - 214 = 30117847 is a prime.

It is a super-2 number, since 2×301342312 = 1816143755922722, 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 (30134239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15067115 + 15067116.

It is an arithmetic number, because the mean of its divisors is an integer number (15067116).

Almost surely, 230134231 is an apocalyptic number.

30134231 is a deficient number, since it is larger than the sum of its proper divisors (1).

30134231 is an equidigital number, since it uses as much as digits as its factorization.

30134231 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 30134231 is about 5489.4654566724. The cubic root of 30134231 is about 311.1859910416.

Adding to 30134231 its reverse (13243103), we get a palindrome (43377334).

The spelling of 30134231 in words is "thirty million, one hundred thirty-four thousand, two hundred thirty-one".