Search a number
-
+
68039256283 = 179792747951
BaseRepresentation
bin111111010111011101…
…001010100011011011
320111121202212100010221
4333113131022203123
52103321022200113
651131245220511
74626035064445
oct772735124333
9214552770127
1068039256283
1126945428319
121122a261737
13655416647b
143416459495
151b8340498d
hexfd774a8db

68039256283 has 8 divisors (see below), whose sum is σ = 68429422080. Its totient is φ = 67649202600.

The previous prime is 68039256269. The next prime is 68039256293. The reversal of 68039256283 is 38265293086.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68039256283 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 68039256283.

It is not an unprimeable number, because it can be changed into a prime (68039256293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1394958 + ... + 1442908.

It is an arithmetic number, because the mean of its divisors is an integer number (8553677760).

Almost surely, 268039256283 is an apocalyptic number.

68039256283 is a deficient number, since it is larger than the sum of its proper divisors (390165797).

68039256283 is a wasteful number, since it uses less digits than its factorization.

68039256283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56057.

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 68039256283 in words is "sixty-eight billion, thirty-nine million, two hundred fifty-six thousand, two hundred eighty-three".

Divisors: 1 179 7927 47951 1418933 8583229 380107577 68039256283