121866381
121,866,381 is an odd composite number composed of five prime numbers multiplied together.
121866381 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 121866381:
32 × 72 × 13 × 29 × 733
(3 × 3 × 7 × 7 × 13 × 29 × 733)See below for interesting mathematical facts about the number 121866381 from the Numbermatics database.
Names of 121866381
- Cardinal: 121866381 can be written as One hundred twenty-one million, eight hundred sixty-six thousand, three hundred eighty-one.
Scientific notation
- Scientific notation: 1.21866381 × 108
Factors of 121866381
Divisors of 121866381
- Number of divisors d(n): 72
-
Complete list of divisors:
1 3 7 9 13 21 29 39 49 63 87 91 117 147 203 261 273 377 441 609 637 733 819 1131 1421 1827 1911 2199 2639 3393 4263 5131 5733 6597 7917 9529 12789 15393 18473 21257 23751 28587 35917 46179 55419 63771 66703 85761 107751 148799 166257 191313 200109 276341 323253 446397 466921 600327 829023 1041593 1339191 1400763 1934387 2487069 3124779 4202289 5803161 9374337 13540709 17409483 40622127 121866381
- Sum of all divisors σ(n): 228435480
- Sum of proper divisors (its aliquot sum) s(n): 106569099
- 121866381 is a deficient number, because the sum of its proper divisors (106569099) is less than itself. Its deficiency is 15297282
Bases of 121866381
- Binary: 1110100001110001000100011012
- Hexadecimal: 0x743888D
- Base-36: 20K0P9
Squares and roots of 121866381
- 121866381 squared (1218663812) is 14851414818037161
- 121866381 cubed (1218663813) is 1809888176603962334584341
-
The
square root of 121866381 is 11039.3107121777 -
The
cube root of 121866381 is 495.7864327805
Scales and comparisons
How big is 121866381?- 121,866,381 seconds is equal to 3 years, 45 weeks, 3 days, 11 hours, 46 minutes, 21 seconds.
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To count from 1 to 121,866,381 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 121866381 cubic inches would be around 41.3 feet tall.
Recreational maths with 121866381
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