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293431 is a prime number
BaseRepresentation
bin1000111101000110111
3112220111211
41013220313
533342211
610142251
72331325
oct1075067
9486454
10293431
11190506
12121987
13a3738
1478d15
155be21
hex47a37

293431 has 2 divisors, whose sum is σ = 293432. Its totient is φ = 293430.

The previous prime is 293413. The next prime is 293441. The reversal of 293431 is 134392.

Together with previous prime (293413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 293431 - 25 = 293399 is a prime.

It is a super-2 number, since 2×2934312 = 172203503522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (293441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 146715 + 146716.

It is an arithmetic number, because the mean of its divisors is an integer number (146716).

2293431 is an apocalyptic number.

293431 is a deficient number, since it is larger than the sum of its proper divisors (1).

293431 is an equidigital number, since it uses as much as digits as its factorization.

293431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 22.

The square root of 293431 is about 541.6927173223. The cubic root of 293431 is about 66.4510729865.

It can be divided in two parts, 29 and 3431, that multiplied together give a palindrome (99499).

The spelling of 293431 in words is "two hundred ninety-three thousand, four hundred thirty-one".