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71434361 is a prime number
BaseRepresentation
bin1000100001000…
…00000001111001
311222102020112002
410100200001321
5121241344421
611031030345
71525116305
oct420400171
9158366462
1071434361
1137360769
121bb0b3b5
1311a5166b
1496b6d05
156410b0b
hex4420079

71434361 has 2 divisors, whose sum is σ = 71434362. Its totient is φ = 71434360.

The previous prime is 71434351. The next prime is 71434373. The reversal of 71434361 is 16343417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71301136 + 133225 = 8444^2 + 365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-71434361 is a prime.

It is not a weakly prime, because it can be changed into another prime (71434351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35717180 + 35717181.

It is an arithmetic number, because the mean of its divisors is an integer number (35717181).

Almost surely, 271434361 is an apocalyptic number.

It is an amenable number.

71434361 is a deficient number, since it is larger than the sum of its proper divisors (1).

71434361 is an equidigital number, since it uses as much as digits as its factorization.

71434361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 71434361 is about 8451.8850560097. The cubic root of 71434361 is about 414.9244765069.

Adding to 71434361 its reverse (16343417), we get a palindrome (87777778).

The spelling of 71434361 in words is "seventy-one million, four hundred thirty-four thousand, three hundred sixty-one".