138968448
138,968,448 is an even composite number composed of four prime numbers multiplied together.
138968448 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 138968448:
27 × 3 × 37 × 9781
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 37 × 9781)See below for interesting mathematical facts about the number 138968448 from the Numbermatics database.
Names of 138968448
- Cardinal: 138968448 can be written as One hundred thirty-eight million, nine hundred sixty-eight thousand, four hundred forty-eight.
Scientific notation
- Scientific notation: 1.38968448 × 108
Factors of 138968448
Divisors of 138968448
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 4 6 8 12 16 24 32 37 48 64 74 96 111 128 148 192 222 296 384 444 592 888 1184 1776 2368 3552 4736 7104 9781 14208 19562 29343 39124 58686 78248 117372 156496 234744 312992 361897 469488 625984 723794 938976 1085691 1251968 1447588 1877952 2171382 2895176 3755904 4342764 5790352 8685528 11580704 17371056 23161408 34742112 46322816 69484224 138968448
- Sum of all divisors σ(n): 379150320
- Sum of proper divisors (its aliquot sum) s(n): 240181872
- 138968448 is an abundant number, because the sum of its proper divisors (240181872) is greater than itself. Its abundance is 101213424
Bases of 138968448
- Binary: 10000100100001111101100000002
- Hexadecimal: 0x8487D80
- Base-36: 2AQKQO
Squares and roots of 138968448
- 138968448 squared (1389684482) is 19312229539528704
- 138968448 cubed (1389684483) is 2683790566528058646331392
-
The
square root of 138968448 is 11788.4879437525 -
The
cube root of 138968448 is 517.9709489131
Scales and comparisons
How big is 138968448?- 138,968,448 seconds is equal to 4 years, 21 weeks, 5 days, 10 hours, 20 minutes, 48 seconds.
-
To count from 1 to 138,968,448 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 138968448 cubic inches would be around 43.2 feet tall.
Recreational maths with 138968448
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