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71348131 is a prime number
BaseRepresentation
bin1000100000010…
…10111110100011
311222020212020101
410100022332203
5121231120011
611025123231
71524310021
oct420127643
9158225211
1071348131
11373019a8
121ba89517
1311a2133a
149693711
1563e52c1
hex440afa3

71348131 has 2 divisors, whose sum is σ = 71348132. Its totient is φ = 71348130.

The previous prime is 71348119. The next prime is 71348153. The reversal of 71348131 is 13184317.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71348131 - 27 = 71348003 is a prime.

It is a super-2 number, since 2×713481312 = 10181111594386322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71348131.

It is not a weakly prime, because it can be changed into another prime (71348191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35674065 + 35674066.

It is an arithmetic number, because the mean of its divisors is an integer number (35674066).

Almost surely, 271348131 is an apocalyptic number.

71348131 is a deficient number, since it is larger than the sum of its proper divisors (1).

71348131 is an equidigital number, since it uses as much as digits as its factorization.

71348131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 71348131 is about 8446.7822867646. The cubic root of 71348131 is about 414.7574544404.

The spelling of 71348131 in words is "seventy-one million, three hundred forty-eight thousand, one hundred thirty-one".