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68347223742 = 2371795724403
BaseRepresentation
bin111111101001110011…
…111101111010111110
320112102020100201002010
4333221303331322332
52104433342124432
651222010112050
74636464546660
oct775163757276
9215366321063
1068347223742
1126a93253886
12112b541b626
1365a2bc3935
143445304530
151ba04893cc
hexfe9cfdebe

68347223742 has 32 divisors (see below), whose sum is σ = 165411770112. Its totient is φ = 18379085184.

The previous prime is 68347223701. The next prime is 68347223767. The reversal of 68347223742 is 24732274386.

It is a junction number, because it is equal to n+sod(n) for n = 68347223691 and 68347223700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47861488 + ... + 47862915.

It is an arithmetic number, because the mean of its divisors is an integer number (5169117816).

Almost surely, 268347223742 is an apocalyptic number.

68347223742 is an abundant number, since it is smaller than the sum of its proper divisors (97064546370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68347223742 is a wasteful number, since it uses less digits than its factorization.

68347223742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95724432.

The product of its digits is 2709504, while the sum is 48.

The spelling of 68347223742 in words is "sixty-eight billion, three hundred forty-seven million, two hundred twenty-three thousand, seven hundred forty-two".

Divisors: 1 2 3 6 7 14 17 21 34 42 51 102 119 238 357 714 95724403 191448806 287173209 574346418 670070821 1340141642 1627314851 2010212463 3254629702 4020424926 4881944553 9763889106 11391203957 22782407914 34173611871 68347223742