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313041481 is a prime number
BaseRepresentation
bin10010101010001…
…010001001001001
3210211001011011221
4102222022021021
51120114311411
651021322041
710520544244
oct2252121111
9724034157
10313041481
11150781775
1288a06321
134cb15b5c
142d80a25b
151c738071
hex12a8a249

313041481 has 2 divisors, whose sum is σ = 313041482. Its totient is φ = 313041480.

The previous prime is 313041413. The next prime is 313041517. The reversal of 313041481 is 184140313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228493456 + 84548025 = 15116^2 + 9195^2 .

It is a cyclic number.

It is not a de Polignac number, because 313041481 - 219 = 312517193 is a prime.

It is a super-2 number, since 2×3130414812 = 195989937653346722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (313071481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156520740 + 156520741.

It is an arithmetic number, because the mean of its divisors is an integer number (156520741).

Almost surely, 2313041481 is an apocalyptic number.

It is an amenable number.

313041481 is a deficient number, since it is larger than the sum of its proper divisors (1).

313041481 is an equidigital number, since it uses as much as digits as its factorization.

313041481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 313041481 is about 17692.9782964881. The cubic root of 313041481 is about 678.9961261359.

Adding to 313041481 its reverse (184140313), we get a palindrome (497181794).

The spelling of 313041481 in words is "three hundred thirteen million, forty-one thousand, four hundred eighty-one".