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68861254343 = 710990250661
BaseRepresentation
bin100000000100001110…
…0110101101011000111
320120202001121011111112
41000020130311223013
52112011440114333
651345011355235
74655306001320
oct1001034655307
9216661534445
1068861254343
1127227423662
12114195b2b1b
13665554c05b
1434936ad447
151bd0674948
hex1008735ac7

68861254343 has 8 divisors (see below), whose sum is σ = 79420582560. Its totient is φ = 58482427680.

The previous prime is 68861254333. The next prime is 68861254367. The reversal of 68861254343 is 34345216886.

It is a happy number.

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-68861254343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68861254291 and 68861254300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68861254333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45124568 + ... + 45126093.

It is an arithmetic number, because the mean of its divisors is an integer number (9927572820).

Almost surely, 268861254343 is an apocalyptic number.

68861254343 is a deficient number, since it is larger than the sum of its proper divisors (10559328217).

68861254343 is a wasteful number, since it uses less digits than its factorization.

68861254343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90250777.

The product of its digits is 3317760, while the sum is 50.

The spelling of 68861254343 in words is "sixty-eight billion, eight hundred sixty-one million, two hundred fifty-four thousand, three hundred forty-three".

Divisors: 1 7 109 763 90250661 631754627 9837322049 68861254343