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1043042281 is a prime number
BaseRepresentation
bin111110001010111…
…000111111101001
32200200200001000121
4332022320333221
54114004323111
6251300003241
734563466411
oct7612707751
92620601017
101043042281
11495852116
12251390521
1313812a6a8
149c753641
1561884871
hex3e2b8fe9

1043042281 has 2 divisors, whose sum is σ = 1043042282. Its totient is φ = 1043042280.

The previous prime is 1043042267. The next prime is 1043042311. The reversal of 1043042281 is 1822403401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1031373225 + 11669056 = 32115^2 + 3416^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043042281 - 217 = 1042911209 is a prime.

It is a super-2 number, since 2×10430422812 = 2175874399907365922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1043042081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521521140 + 521521141.

It is an arithmetic number, because the mean of its divisors is an integer number (521521141).

Almost surely, 21043042281 is an apocalyptic number.

It is an amenable number.

1043042281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043042281 is an equidigital number, since it uses as much as digits as its factorization.

1043042281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 1043042281 is about 32296.1651129047. The cubic root of 1043042281 is about 1014.1463637381.

Adding to 1043042281 its reverse (1822403401), we get a palindrome (2865445682).

The spelling of 1043042281 in words is "one billion, forty-three million, forty-two thousand, two hundred eighty-one".