81383400120
81,383,400,120 is an even composite number composed of five prime numbers multiplied together.
81383400120 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 81383400120:
23 × 3 × 5 × 11 × 61654091
(2 × 2 × 2 × 3 × 5 × 11 × 61654091)See below for interesting mathematical facts about the number 81383400120 from the Numbermatics database.
Names of 81383400120
- Cardinal: 81383400120 can be written as Eighty-one billion, three hundred eighty-three million, four hundred thousand, one hundred twenty.
Scientific notation
- Scientific notation: 8.138340012 × 1010
Factors of 81383400120
Divisors of 81383400120
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 132 165 220 264 330 440 660 1320 61654091 123308182 184962273 246616364 308270455 369924546 493232728 616540910 678195001 739849092 924811365 1233081820 1356390002 1479698184 1849622730 2034585003 2466163640 2712780004 3390975005 3699245460 4069170006 5425560008 6781950010 7398490920 8138340012 10172925015 13563900020 16276680024 20345850030 27127800040 40691700060 81383400120
- Sum of all divisors σ(n): 266345677440
- Sum of proper divisors (its aliquot sum) s(n): 184962277320
- 81383400120 is an abundant number, because the sum of its proper divisors (184962277320) is greater than itself. Its abundance is 103578877200
Bases of 81383400120
- Binary: 10010111100101101010000100010101110002
- Hexadecimal: 0x12F2D422B8
- Base-36: 11DXKPFC
Squares and roots of 81383400120
- 81383400120 squared (813834001202) is 6623257815092016014400
- 81383400120 cubed (813834001203) is 539023240863550513917362881728000
-
The
square root of 81383400120 is 285277.7595958017 -
The
cube root of 81383400120 is 4333.5646183197
Scales and comparisons
How big is 81383400120?- 81,383,400,120 seconds is equal to 2,587 years, 38 weeks, 3 days, 12 hours, 2 minutes.
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To count from 1 to 81,383,400,120 would take you about five thousand, one hundred seventy-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 81383400120 cubic inches would be around 361.1 feet tall.
Recreational maths with 81383400120
- 81383400120 backwards is 02100438318
- 81383400120 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81383400120's digits is 30
- More coming soon!
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