Search a number
-
+
881315441 is a prime number
BaseRepresentation
bin110100100001111…
…100111001110001
32021102100110111122
4310201330321301
53301104043231
6223241352025
730561025526
oct6441747161
92242313448
10881315441
11412530376
12207198615
13110783c36
148509514d
155258a77b
hex3487ce71

881315441 has 2 divisors, whose sum is σ = 881315442. Its totient is φ = 881315440.

The previous prime is 881315419. The next prime is 881315443. The reversal of 881315441 is 144513188.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 655564816 + 225750625 = 25604^2 + 15025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-881315441 is a prime.

It is a super-3 number, since 3×8813154413 (a number of 28 digits) contains 333 as substring.

Together with 881315443, 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 (881315443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440657720 + 440657721.

It is an arithmetic number, because the mean of its divisors is an integer number (440657721).

Almost surely, 2881315441 is an apocalyptic number.

It is an amenable number.

881315441 is a deficient number, since it is larger than the sum of its proper divisors (1).

881315441 is an equidigital number, since it uses as much as digits as its factorization.

881315441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15360, while the sum is 35.

The square root of 881315441 is about 29686.9574224103. The cubic root of 881315441 is about 958.7612208219.

The spelling of 881315441 in words is "eight hundred eighty-one million, three hundred fifteen thousand, four hundred forty-one".