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58231231 is a prime number
BaseRepresentation
bin1101111000100…
…0100110111111
311001120110020021
43132020212333
5104401344411
65440033011
71304646232
oct336104677
9131513207
1058231231
112a962a93
1217602767
13c0aab66
147a3b419
1551a3a71
hex37889bf

58231231 has 2 divisors, whose sum is σ = 58231232. Its totient is φ = 58231230.

The previous prime is 58231213. The next prime is 58231267. The reversal of 58231231 is 13213285.

Together with previous prime (58231213) 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 not a de Polignac number, because 58231231 - 29 = 58230719 is a prime.

It is a super-2 number, since 2×582312312 = 6781752527550722, which contains 22 as substring.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 58231196 and 58231205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (58231031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29115615 + 29115616.

It is an arithmetic number, because the mean of its divisors is an integer number (29115616).

Almost surely, 258231231 is an apocalyptic number.

58231231 is a deficient number, since it is larger than the sum of its proper divisors (1).

58231231 is an equidigital number, since it uses as much as digits as its factorization.

58231231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 25.

The square root of 58231231 is about 7630.9390640995. The cubic root of 58231231 is about 387.6013881074.

It can be divided in two parts, 582 and 31231, that added together give a palindrome (31813).

The spelling of 58231231 in words is "fifty-eight million, two hundred thirty-one thousand, two hundred thirty-one".