421254990
421,254,990 is an even composite number composed of six prime numbers multiplied together.
421254990 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 421254990:
2 × 32 × 5 × 13 × 372 × 263
(2 × 3 × 3 × 5 × 13 × 37 × 37 × 263)See below for interesting mathematical facts about the number 421254990 from the Numbermatics database.
Names of 421254990
- Cardinal: 421254990 can be written as Four hundred twenty-one million, two hundred fifty-four thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 4.2125499 × 108
Factors of 421254990
Divisors of 421254990
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 5 6 9 10 13 15 18 26 30 37 39 45 65 74 78 90 111 117 130 185 195 222 234 263 333 370 390 481 526 555 585 666 789 962 1110 1170 1315 1369 1443 1578 1665 2367 2405 2630 2738 2886 3330 3419 3945 4107 4329 4734 4810 6838 6845 7215 7890 8214 8658 9731 10257 11835 12321 13690 14430 17095 17797 19462 20514 20535 21645 23670 24642 29193 30771 34190 35594 41070 43290 48655 51285 53391 58386 61542 61605 87579 88985 97310 102570 106782 123210 126503 145965 153855 160173 175158 177970 253006 266955 291930 307710 320346 360047 379509 437895 533910 632515 720094 759018 800865 875790 1080141 1138527 1265030 1601730 1800235 1897545 2160282 2277054 3240423 3600470 3795090 4680611 5400705 5692635 6480846 9361222 10801410 11385270 14041833 16202115 23403055 28083666 32404230 42125499 46806110 70209165 84250998 140418330 210627495 421254990
- Sum of all divisors σ(n): 1216863648
- Sum of proper divisors (its aliquot sum) s(n): 795608658
- 421254990 is an abundant number, because the sum of its proper divisors (795608658) is greater than itself. Its abundance is 374353668
Bases of 421254990
- Binary: 110010001101111010111010011102
- Hexadecimal: 0x191BD74E
- Base-36: 6YSYFI
Squares and roots of 421254990
- 421254990 squared (4212549902) is 177455766599900100
- 421254990 cubed (4212549903) is 74754127184483250626499000
-
The
square root of 421254990 is 20524.4973141853 -
The
cube root of 421254990 is 749.6324065295
Scales and comparisons
How big is 421254990?- 421,254,990 seconds is equal to 13 years, 20 weeks, 3 days, 15 hours, 16 minutes, 30 seconds.
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To count from 1 to 421,254,990 would take you about twenty 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 421254990 cubic inches would be around 62.5 feet tall.
Recreational maths with 421254990
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