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68843114677 = 1723237206897
BaseRepresentation
bin100000000011101011…
…1101001000010110101
320120200210110120120001
41000013113221002311
52111442314132202
651343122511301
74654665551101
oct1000727510265
9216623416501
1068843114677
1127218163aa7
1211413505531
13665186a61c
14349110a901
151bcdc8ed87
hex10075e90b5

68843114677 has 24 divisors (see below), whose sum is σ = 78259582296. Its totient is φ = 60301080576.

The previous prime is 68843114657. The next prime is 68843114701. The reversal of 68843114677 is 77641134886.

It can be written as a sum of positive squares in 4 ways, for example, as 27438597316 + 41404517361 = 165646^2 + 203481^2 .

It is a de Polignac number, because none of the positive numbers 2k-68843114677 is a prime.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68843114657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 229293 + ... + 436189.

It is an arithmetic number, because the mean of its divisors is an integer number (3260815929).

Almost surely, 268843114677 is an apocalyptic number.

It is an amenable number.

68843114677 is a deficient number, since it is larger than the sum of its proper divisors (9416467619).

68843114677 is a wasteful number, since it uses less digits than its factorization.

68843114677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206997 (or 206974 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 55.

The spelling of 68843114677 in words is "sixty-eight billion, eight hundred forty-three million, one hundred fourteen thousand, six hundred seventy-seven".

Divisors: 1 17 23 37 391 529 629 851 8993 14467 19573 206897 332741 3517249 4758631 7655189 80896727 109448513 130138213 176069347 1860624721 2993178899 4049594981 68843114677