121430820
121,430,820 is an even composite number composed of six prime numbers multiplied together.
121430820 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 121430820:
22 × 3 × 5 × 72 × 103 × 401
(2 × 2 × 3 × 5 × 7 × 7 × 103 × 401)See below for interesting mathematical facts about the number 121430820 from the Numbermatics database.
Names of 121430820
- Cardinal: 121430820 can be written as One hundred twenty-one million, four hundred thirty thousand, eight hundred twenty.
Scientific notation
- Scientific notation: 1.2143082 × 108
Factors of 121430820
Divisors of 121430820
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 103 105 140 147 196 206 210 245 294 309 401 412 420 490 515 588 618 721 735 802 980 1030 1203 1236 1442 1470 1545 1604 2005 2060 2163 2406 2807 2884 2940 3090 3605 4010 4326 4812 5047 5614 6015 6180 7210 8020 8421 8652 10094 10815 11228 12030 14035 14420 15141 16842 19649 20188 21630 24060 25235 28070 30282 33684 39298 41303 42105 43260 50470 56140 58947 60564 75705 78596 82606 84210 98245 100940 117894 123909 151410 165212 168420 196490 206515 235788 247818 289121 294735 302820 392980 413030 495636 578242 589470 619545 826060 867363 1156484 1178940 1239090 1445605 1734726 2023847 2478180 2891210 3469452 4047694 4336815 5782420 6071541 8095388 8673630 10119235 12143082 17347260 20238470 24286164 30357705 40476940 60715410 121430820
- Sum of all divisors σ(n): 400353408
- Sum of proper divisors (its aliquot sum) s(n): 278922588
- 121430820 is an abundant number, because the sum of its proper divisors (278922588) is greater than itself. Its abundance is 157491768
Bases of 121430820
- Binary: 1110011110011100011001001002
- Hexadecimal: 0x73CE324
- Base-36: 20AOMC
Squares and roots of 121430820
- 121430820 squared (1214308202) is 14745444045872400
- 121430820 cubed (1214308203) is 1790551361754403147368000
-
The
square root of 121430820 is 11019.5653271805 -
The
cube root of 121430820 is 495.1950664721
Scales and comparisons
How big is 121430820?- 121,430,820 seconds is equal to 3 years, 44 weeks, 5 days, 10 hours, 47 minutes.
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To count from 1 to 121,430,820 would take you about five 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 121430820 cubic inches would be around 41.3 feet tall.
Recreational maths with 121430820
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