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71193412239 = 3109217716857
BaseRepresentation
bin100001001001101110…
…1010100001010001111
320210202120222001200220
41002103131110022033
52131301003142424
652412241522423
75100145006425
oct1022335241217
9223676861626
1071193412239
1128213909384
121196a643413
136937773441
14363530d115
151cba299579
hex109375428f

71193412239 has 8 divisors (see below), whose sum is σ = 95795417520. Its totient is φ = 47026840896.

The previous prime is 71193412139. The next prime is 71193412267. The reversal of 71193412239 is 93221439117.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-71193412239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71193412239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71193412139) 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 7 ways as a sum of consecutive naturals, for example, 108858102 + ... + 108858755.

It is an arithmetic number, because the mean of its divisors is an integer number (11974427190).

Almost surely, 271193412239 is an apocalyptic number.

71193412239 is a deficient number, since it is larger than the sum of its proper divisors (24602005281).

71193412239 is a wasteful number, since it uses less digits than its factorization.

71193412239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217716969.

The product of its digits is 81648, while the sum is 42.

The spelling of 71193412239 in words is "seventy-one billion, one hundred ninety-three million, four hundred twelve thousand, two hundred thirty-nine".

Divisors: 1 3 109 327 217716857 653150571 23731137413 71193412239