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71683889341 = 1739742125229
BaseRepresentation
bin100001011000010110…
…0010101100010111101
320212000202212212210111
41002300230111202331
52133302033424331
652533042310021
75115252002011
oct1026054254275
9225022785714
1071683889341
1128445761059
1211a86958311
1369b5272b8c
143680506541
151ce8380db1
hex10b0b158bd

71683889341 has 16 divisors (see below), whose sum is σ = 76275537840. Its totient is φ = 67134735360.

The previous prime is 71683889317. The next prime is 71683889353. The reversal of 71683889341 is 14398838617.

It can be written as a sum of positive squares in 8 ways, for example, as 10660562500 + 61023326841 = 103250^2 + 247029^2 .

It is not a de Polignac number, because 71683889341 - 25 = 71683889309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71683889441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2828715 + ... + 2853943.

It is an arithmetic number, because the mean of its divisors is an integer number (4767221115).

Almost surely, 271683889341 is an apocalyptic number.

It is an amenable number.

71683889341 is a deficient number, since it is larger than the sum of its proper divisors (4591648499).

71683889341 is a wasteful number, since it uses less digits than its factorization.

71683889341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26064.

The product of its digits is 6967296, while the sum is 58.

The spelling of 71683889341 in words is "seventy-one billion, six hundred eighty-three million, eight hundred eighty-nine thousand, three hundred forty-one".

Divisors: 1 17 397 421 6749 7157 25229 167137 428893 2841329 10015913 10621409 170270521 180563953 4216699373 71683889341