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1314052981 is a prime number
BaseRepresentation
bin100111001010010…
…1101101101110101
310101120121210210221
41032110231231311
510142344143411
6334220414341
744364160153
oct11624555565
93346553727
101314052981
116148264aa
123080a73b1
1317c318557
14c673c3d3
157a569071
hex4e52db75

1314052981 has 2 divisors, whose sum is σ = 1314052982. Its totient is φ = 1314052980.

The previous prime is 1314052969. The next prime is 1314053003. The reversal of 1314052981 is 1892504131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1291252356 + 22800625 = 35934^2 + 4775^2 .

It is a cyclic number.

It is not a de Polignac number, because 1314052981 - 213 = 1314044789 is a prime.

It is a super-2 number, since 2×13140529812 = 3453470473749972722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1314052921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657026490 + 657026491.

It is an arithmetic number, because the mean of its divisors is an integer number (657026491).

Almost surely, 21314052981 is an apocalyptic number.

It is an amenable number.

1314052981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1314052981 is an equidigital number, since it uses as much as digits as its factorization.

1314052981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 1314052981 is about 36249.8687032105. The cubic root of 1314052981 is about 1095.3114439742.

The spelling of 1314052981 in words is "one billion, three hundred fourteen million, fifty-two thousand, nine hundred eighty-one".