[go: up one dir, main page]

Search a number
-
+
1275893 is a prime number
BaseRepresentation
bin100110111011111110101
32101211012022
410313133311
5311312033
643202525
713562543
oct4673765
92354168
101275893
117a1663
12516445
13358988
14252d93
151a3098
hex1377f5

1275893 has 2 divisors, whose sum is σ = 1275894. Its totient is φ = 1275892.

The previous prime is 1275889. The next prime is 1275899. The reversal of 1275893 is 3985721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1129969 + 145924 = 1063^2 + 382^2 .

It is an emirp because it is prime and its reverse (3985721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1275893 - 22 = 1275889 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1275899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637946 + 637947.

It is an arithmetic number, because the mean of its divisors is an integer number (637947).

21275893 is an apocalyptic number.

It is an amenable number.

1275893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275893 is an equidigital number, since it uses as much as digits as its factorization.

1275893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 1275893 is about 1129.5543368958. The cubic root of 1275893 is about 108.4604540627.

The spelling of 1275893 in words is "one million, two hundred seventy-five thousand, eight hundred ninety-three".