139947840
139,947,840 is an even composite number composed of four prime numbers multiplied together.
139947840 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty-four divisors.
Prime factorization of 139947840:
26 × 32 × 5 × 48593
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 48593)See below for interesting mathematical facts about the number 139947840 from the Numbermatics database.
Names of 139947840
- Cardinal: 139947840 can be written as One hundred thirty-nine million, nine hundred forty-seven thousand, eight hundred forty.
Scientific notation
- Scientific notation: 1.3994784 × 108
Factors of 139947840
Divisors of 139947840
- Number of divisors d(n): 84
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 144 160 180 192 240 288 320 360 480 576 720 960 1440 2880 48593 97186 145779 194372 242965 291558 388744 437337 485930 583116 728895 777488 874674 971860 1166232 1457790 1554976 1749348 1943720 2186685 2332464 2915580 3109952 3498696 3887440 4373370 4664928 5831160 6997392 7774880 8746740 9329856 11662320 13994784 15549760 17493480 23324640 27989568 34986960 46649280 69973920 139947840
- Sum of all divisors σ(n): 481372164
- Sum of proper divisors (its aliquot sum) s(n): 341424324
- 139947840 is an abundant number, because the sum of its proper divisors (341424324) is greater than itself. Its abundance is 201476484
Bases of 139947840
- Binary: 10000101011101101111010000002
- Hexadecimal: 0x8576F40
- Base-36: 2BBKG0
Squares and roots of 139947840
- 139947840 squared (1399478402) is 19585397920665600
- 139947840 cubed (1399478403) is 2740934134537642082304000
-
The
square root of 139947840 is 11829.9551985627 -
The
cube root of 139947840 is 519.1849163435
Scales and comparisons
How big is 139947840?- 139,947,840 seconds is equal to 4 years, 23 weeks, 2 days, 18 hours, 24 minutes.
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To count from 1 to 139,947,840 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 139947840 cubic inches would be around 43.3 feet tall.
Recreational maths with 139947840
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