138421899
138,421,899 is an odd composite number composed of five prime numbers multiplied together.
138421899 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 138421899:
33 × 7 × 11 × 139 × 479
(3 × 3 × 3 × 7 × 11 × 139 × 479)See below for interesting mathematical facts about the number 138421899 from the Numbermatics database.
Names of 138421899
- Cardinal: 138421899 can be written as One hundred thirty-eight million, four hundred twenty-one thousand, eight hundred ninety-nine.
Scientific notation
- Scientific notation: 1.38421899 × 108
Factors of 138421899
Divisors of 138421899
- Number of divisors d(n): 64
-
Complete list of divisors:
1 3 7 9 11 21 27 33 63 77 99 139 189 231 297 417 479 693 973 1251 1437 1529 2079 2919 3353 3753 4311 4587 5269 8757 10059 10703 12933 13761 15807 26271 30177 32109 36883 41283 47421 66581 90531 96327 110649 142263 199743 288981 331947 466067 599229 732391 995841 1398201 1797687 2197173 4194603 5126737 6591519 12583809 15380211 19774557 46140633 138421899
- Sum of all divisors σ(n): 258048000
- Sum of proper divisors (its aliquot sum) s(n): 119626101
- 138421899 is a deficient number, because the sum of its proper divisors (119626101) is less than itself. Its deficiency is 18795798
Bases of 138421899
- Binary: 10000100000000100110100010112
- Hexadecimal: 0x840268B
- Base-36: 2AEV0R
Squares and roots of 138421899
- 138421899 squared (1384218992) is 19160622122766201
- 138421899 cubed (1384218993) is 2652249700254708675435699
-
The
square root of 138421899 is 11765.2836344901 -
The
cube root of 138421899 is 517.2910141237
Scales and comparisons
How big is 138421899?- 138,421,899 seconds is equal to 4 years, 20 weeks, 6 days, 2 hours, 31 minutes, 39 seconds.
-
To count from 1 to 138,421,899 would take you about six 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 138421899 cubic inches would be around 43.1 feet tall.
Recreational maths with 138421899
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