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91493 is a prime number
BaseRepresentation
bin10110010101100101
311122111122
4112111211
510411433
61543325
7530513
oct262545
9148448
1091493
1162816
1244b45
133284c
14254b3
151c198
hex16565

91493 has 2 divisors, whose sum is σ = 91494. Its totient is φ = 91492.

The previous prime is 91463. The next prime is 91499. The reversal of 91493 is 39419.

It is a happy number.

91493 is nontrivially palindromic in base 4.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91204 + 289 = 302^2 + 17^2 .

It is an emirp because it is prime and its reverse (39419) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91493 - 28 = 91237 is a prime.

It is a zygodrome in base 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45746 + 45747.

It is an arithmetic number, because the mean of its divisors is an integer number (45747).

291493 is an apocalyptic number.

It is an amenable number.

91493 is a deficient number, since it is larger than the sum of its proper divisors (1).

91493 is an equidigital number, since it uses as much as digits as its factorization.

91493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 26.

The square root of 91493 is about 302.4780983807. The cubic root of 91493 is about 45.0604947704.

Adding to 91493 its sum of digits (26), we get a palindrome (91519).

The spelling of 91493 in words is "ninety-one thousand, four hundred ninety-three".