668535168
668,535,168 is an even composite number composed of five prime numbers multiplied together.
668535168 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 668535168:
27 × 3 × 7 × 73 × 3407
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 7 × 73 × 3407)See below for interesting mathematical facts about the number 668535168 from the Numbermatics database.
Names of 668535168
- Cardinal: 668535168 can be written as Six hundred sixty-eight million, five hundred thirty-five thousand, one hundred sixty-eight.
Scientific notation
- Scientific notation: 6.68535168 × 108
Factors of 668535168
Divisors of 668535168
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 73 84 96 112 128 146 168 192 219 224 292 336 384 438 448 511 584 672 876 896 1022 1168 1344 1533 1752 2044 2336 2688 3066 3407 3504 4088 4672 6132 6814 7008 8176 9344 10221 12264 13628 14016 16352 20442 23849 24528 27256 28032 32704 40884 47698 49056 54512 65408 71547 81768 95396 98112 109024 143094 163536 190792 196224 218048 248711 286188 327072 381584 436096 497422 572376 654144 746133 763168 994844 1144752 1308288 1492266 1526336 1740977 1989688 2289504 2984532 3052672 3481954 3979376 4579008 5222931 5969064 6963908 7958752 9158016 10445862 11938128 13927816 15917504 20891724 23876256 27855632 31835008 41783448 47752512 55711264 83566896 95505024 111422528 167133792 222845056 334267584 668535168
- Sum of all divisors σ(n): 2057886720
- Sum of proper divisors (its aliquot sum) s(n): 1389351552
- 668535168 is an abundant number, because the sum of its proper divisors (1389351552) is greater than itself. Its abundance is 720816384
Bases of 668535168
- Binary: 1001111101100100001001100000002
- Hexadecimal: 0x27D90980
- Base-36: B2111C
Squares and roots of 668535168
- 668535168 squared (6685351682) is 446939270852788224
- 668535168 cubed (6685351683) is 298794620525366278600261632
-
The
square root of 668535168 is 25856.0470296601 -
The
cube root of 668535168 is 874.3958465707
Scales and comparisons
How big is 668535168?- 668,535,168 seconds is equal to 21 years, 13 weeks, 2 days, 16 hours, 12 minutes, 48 seconds.
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To count from 1 to 668,535,168 would take you about thirty-one years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 668535168 cubic inches would be around 72.9 feet tall.
Recreational maths with 668535168
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