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71480401 is a prime number
BaseRepresentation
bin1000100001010…
…11010001010001
311222111120200021
410100223101101
5121244333101
611032023441
71525400446
oct420532121
9158446607
1071480401
1137392313
121bb31b81
1311a695c5
1496c99cd
15641e5a1
hex442b451

71480401 has 2 divisors, whose sum is σ = 71480402. Its totient is φ = 71480400.

The previous prime is 71480371. The next prime is 71480417. The reversal of 71480401 is 10408417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39388176 + 32092225 = 6276^2 + 5665^2 .

It is a cyclic number.

It is not a de Polignac number, because 71480401 - 25 = 71480369 is a prime.

It is not a weakly prime, because it can be changed into another prime (71480441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35740200 + 35740201.

It is an arithmetic number, because the mean of its divisors is an integer number (35740201).

Almost surely, 271480401 is an apocalyptic number.

It is an amenable number.

71480401 is a deficient number, since it is larger than the sum of its proper divisors (1).

71480401 is an equidigital number, since it uses as much as digits as its factorization.

71480401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 71480401 is about 8454.6082700501. The cubic root of 71480401 is about 415.0135980448.

Adding to 71480401 its reverse (10408417), we get a palindrome (81888818).

The spelling of 71480401 in words is "seventy-one million, four hundred eighty thousand, four hundred one".