668991232
668,991,232 is an even composite number composed of four prime numbers multiplied together.
668991232 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred sixty-two divisors.
Prime factorization of 668991232:
28 × 7 × 132 × 472
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 7 × 13 × 13 × 47 × 47)See below for interesting mathematical facts about the number 668991232 from the Numbermatics database.
Names of 668991232
- Cardinal: 668991232 can be written as Six hundred sixty-eight million, nine hundred ninety-one thousand, two hundred thirty-two.
Scientific notation
- Scientific notation: 6.68991232 × 108
Factors of 668991232
Divisors of 668991232
- Number of divisors d(n): 162
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Complete list of divisors:
1 2 4 7 8 13 14 16 26 28 32 47 52 56 64 91 94 104 112 128 169 182 188 208 224 256 329 338 364 376 416 448 611 658 676 728 752 832 896 1183 1222 1316 1352 1456 1504 1664 1792 2209 2366 2444 2632 2704 2912 3008 3328 4277 4418 4732 4888 5264 5408 5824 6016 7943 8554 8836 9464 9776 10528 10816 11648 12032 15463 15886 17108 17672 18928 19552 21056 21632 23296 28717 30926 31772 34216 35344 37856 39104 42112 43264 55601 57434 61852 63544 68432 70688 75712 78208 84224 111202 114868 123704 127088 136864 141376 151424 156416 201019 222404 229736 247408 254176 273728 282752 302848 373321 402038 444808 459472 494816 508352 547456 565504 746642 804076 889616 918944 989632 1016704 1094912 1493284 1608152 1779232 1837888 1979264 2033408 2613247 2986568 3216304 3558464 3675776 3958528 5226494 5973136 6432608 7116928 7351552 10452988 11946272 12865216 14233856 20905976 23892544 25730432 41811952 47785088 51460864 83623904 95570176 167247808 334495616 668991232
- Sum of all divisors σ(n): 1688470728
- Sum of proper divisors (its aliquot sum) s(n): 1019479496
- 668991232 is an abundant number, because the sum of its proper divisors (1019479496) is greater than itself. Its abundance is 350488264
Bases of 668991232
- Binary: 1001111101111111111111000000002
- Hexadecimal: 0x27DFFF00
- Base-36: B2ASXS
Squares and roots of 668991232
- 668991232 squared (6689912322) is 447549268492877824
- 668991232 cubed (6689912323) is 299406536509749118703239168
-
The
square root of 668991232 is 25864.8648169673 -
The
cube root of 668991232 is 874.5946343285
Scales and comparisons
How big is 668991232?- 668,991,232 seconds is equal to 21 years, 14 weeks, 22 hours, 53 minutes, 52 seconds.
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To count from 1 to 668,991,232 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 668991232 cubic inches would be around 72.9 feet tall.
Recreational maths with 668991232
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