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68479200 = 2532529511
BaseRepresentation
bin1000001010011…
…10100011100000
311202212002210200
410011032203200
5120012313300
610443425200
71461030546
oct405164340
9152762720
1068479200
1135722489
121ab25200
131125854a
149147d96
15602a200
hex414e8e0

68479200 has 108 divisors (see below), whose sum is σ = 241500168. Its totient is φ = 18259200.

The previous prime is 68479199. The next prime is 68479207. The reversal of 68479200 is 297486.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68479207) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2445 + ... + 11955.

Almost surely, 268479200 is an apocalyptic number.

68479200 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 68479200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120750084).

68479200 is an abundant number, since it is smaller than the sum of its proper divisors (173020968).

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

68479200 is a wasteful number, since it uses less digits than its factorization.

68479200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9537 (or 9521 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 68479200 is about 8275.2160092653. The cubic root of 68479200 is about 409.1220555410.

The spelling of 68479200 in words is "sixty-eight million, four hundred seventy-nine thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 72 75 80 90 96 100 120 144 150 160 180 200 225 240 288 300 360 400 450 480 600 720 800 900 1200 1440 1800 2400 3600 7200 9511 19022 28533 38044 47555 57066 76088 85599 95110 114132 142665 152176 171198 190220 228264 237775 285330 304352 342396 380440 427995 456528 475550 570660 684792 713325 760880 855990 913056 951100 1141320 1369584 1426650 1521760 1711980 1902200 2139975 2282640 2739168 2853300 3423960 3804400 4279950 4565280 5706600 6847920 7608800 8559900 11413200 13695840 17119800 22826400 34239600 68479200