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71914750489 is a prime number
BaseRepresentation
bin100001011111001110…
…1000000001000011001
320212121212021211202101
41002332131000020121
52134240134003424
653012010403401
75124054202411
oct1027635001031
9225555254671
1071914750489
112855400249a
1211b30130561
136a210440ca
1436a303d641
151d0d784344
hex10be740219

71914750489 has 2 divisors, whose sum is σ = 71914750490. Its totient is φ = 71914750488.

The previous prime is 71914750487. The next prime is 71914750529. The reversal of 71914750489 is 98405741917.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62042340889 + 9872409600 = 249083^2 + 99360^2 .

It is a cyclic number.

It is not a de Polignac number, because 71914750489 - 21 = 71914750487 is a prime.

Together with 71914750487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (71914750487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35957375244 + 35957375245.

It is an arithmetic number, because the mean of its divisors is an integer number (35957375245).

Almost surely, 271914750489 is an apocalyptic number.

It is an amenable number.

71914750489 is a deficient number, since it is larger than the sum of its proper divisors (1).

71914750489 is an equidigital number, since it uses as much as digits as its factorization.

71914750489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2540160, while the sum is 55.

It can be divided in two parts, 71914 and 750489, that added together give a triangular number (822403 = T1282).

The spelling of 71914750489 in words is "seventy-one billion, nine hundred fourteen million, seven hundred fifty thousand, four hundred eighty-nine".