Search a number
-
+
1047281 is a prime number
BaseRepresentation
bin11111111101011110001
31222012121012
43333223301
5232003111
634240305
711621204
oct3775361
91865535
101047281
11655924
12426095
132a88c1
141d393b
1515a48b
hexffaf1

1047281 has 2 divisors, whose sum is σ = 1047282. Its totient is φ = 1047280.

The previous prime is 1047271. The next prime is 1047283. The reversal of 1047281 is 1827401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 874225 + 173056 = 935^2 + 416^2 .

It is a cyclic number.

It is not a de Polignac number, because 1047281 - 210 = 1046257 is a prime.

It is a super-2 number, since 2×10472812 = 2193594985922, which contains 22 as substring.

Together with 1047283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1047283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523640 + 523641.

It is an arithmetic number, because the mean of its divisors is an integer number (523641).

21047281 is an apocalyptic number.

It is an amenable number.

1047281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047281 is an equidigital number, since it uses as much as digits as its factorization.

1047281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1047281 is about 1023.3674804292. The cubic root of 1047281 is about 101.5518270915.

The spelling of 1047281 in words is "one million, forty-seven thousand, two hundred eighty-one".