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68275800 = 23325283457
BaseRepresentation
bin1000001000111…
…00111001011000
311202110202210100
410010130321120
5114434311200
610435215400
71456222545
oct404347130
9152422710
1068275800
11355a368a
121aa47560
13111b6aa8
1490d3bcc
155ed9d00
hex411ce58

68275800 has 144 divisors (see below), whose sum is σ = 232563240. Its totient is φ = 17948160.

The previous prime is 68275793. The next prime is 68275811. The reversal of 68275800 is 857286.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 149172 + ... + 149628.

Almost surely, 268275800 is an apocalyptic number.

68275800 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68275800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116281620).

68275800 is an abundant number, since it is smaller than the sum of its proper divisors (164287440).

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

68275800 is a wasteful number, since it uses less digits than its factorization.

68275800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 68275800 is about 8262.9171604222. The cubic root of 68275800 is about 408.7165895874.

The spelling of 68275800 in words is "sixty-eight million, two hundred seventy-five thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 30 36 40 45 50 60 72 75 83 90 100 120 150 166 180 200 225 249 300 332 360 415 450 457 498 600 664 747 830 900 914 996 1245 1371 1494 1660 1800 1828 1992 2075 2285 2490 2742 2988 3320 3656 3735 4113 4150 4570 4980 5484 5976 6225 6855 7470 8226 8300 9140 9960 10968 11425 12450 13710 14940 16452 16600 18280 18675 20565 22850 24900 27420 29880 32904 34275 37350 37931 41130 45700 49800 54840 68550 74700 75862 82260 91400 102825 113793 137100 149400 151724 164520 189655 205650 227586 274200 303448 341379 379310 411300 455172 568965 682758 758620 822600 910344 948275 1137930 1365516 1517240 1706895 1896550 2275860 2731032 2844825 3413790 3793100 4551720 5689650 6827580 7586200 8534475 11379300 13655160 17068950 22758600 34137900 68275800