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10568981 is a prime number
BaseRepresentation
bin101000010100…
…010100010101
3201212221220202
4220110110111
510201201411
61014310245
7155556233
oct50242425
921787822
1010568981
115a696a5
123658385
132260847
141591953
15ddb83b
hexa14515

10568981 has 2 divisors, whose sum is σ = 10568982. Its totient is φ = 10568980.

The previous prime is 10568953. The next prime is 10568993. The reversal of 10568981 is 18986501.

10568981 is nontrivially palindromic in base 11.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6604900 + 3964081 = 2570^2 + 1991^2 .

It is a cyclic number.

It is not a de Polignac number, because 10568981 - 210 = 10567957 is a prime.

It is a super-2 number, since 2×105689812 = 223406718756722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10568911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5284490 + 5284491.

It is an arithmetic number, because the mean of its divisors is an integer number (5284491).

Almost surely, 210568981 is an apocalyptic number.

It is an amenable number.

10568981 is a deficient number, since it is larger than the sum of its proper divisors (1).

10568981 is an equidigital number, since it uses as much as digits as its factorization.

10568981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 10568981 is about 3250.9969240219. The cubic root of 10568981 is about 219.4544402409.

The spelling of 10568981 in words is "ten million, five hundred sixty-eight thousand, nine hundred eighty-one".