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71390725783 = 1310950381599
BaseRepresentation
bin100001001111100111…
…0000000011010010111
320211021100020121222221
41002133032000122113
52132202011211113
652444011003211
75105062104526
oct1023716003227
9224240217887
1071390725783
1128305226a23
1211a04739507
1369695c9a10
1436535d24bd
151ccc77298d
hex109f380697

71390725783 has 8 divisors (see below), whose sum is σ = 77587664000. Its totient is φ = 65294551008.

The previous prime is 71390725741. The next prime is 71390725789. The reversal of 71390725783 is 38752709317.

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

It is a cyclic number.

It is not a de Polignac number, because 71390725783 - 229 = 70853854871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71390725783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71390725789) 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, 25189383 + ... + 25192216.

It is an arithmetic number, because the mean of its divisors is an integer number (9698458000).

Almost surely, 271390725783 is an apocalyptic number.

71390725783 is a deficient number, since it is larger than the sum of its proper divisors (6196938217).

71390725783 is a wasteful number, since it uses less digits than its factorization.

71390725783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50381721.

The product of its (nonzero) digits is 2222640, while the sum is 52.

The spelling of 71390725783 in words is "seventy-one billion, three hundred ninety million, seven hundred twenty-five thousand, seven hundred eighty-three".

Divisors: 1 13 109 1417 50381599 654960787 5491594291 71390725783