21388088416
21,388,088,416 is an even composite number composed of five prime numbers multiplied together.
21388088416 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21388088416:
25 × 17 × 19 × 31 × 66751
(2 × 2 × 2 × 2 × 2 × 17 × 19 × 31 × 66751)See below for interesting mathematical facts about the number 21388088416 from the Numbermatics database.
Names of 21388088416
- Cardinal: 21388088416 can be written as Twenty-one billion, three hundred eighty-eight million, eighty-eight thousand, four hundred sixteen.
Scientific notation
- Scientific notation: 2.1388088416 × 1010
Factors of 21388088416
Divisors of 21388088416
- Number of divisors d(n): 96
-
Complete list of divisors:
1 2 4 8 16 17 19 31 32 34 38 62 68 76 124 136 152 248 272 304 323 496 527 544 589 608 646 992 1054 1178 1292 2108 2356 2584 4216 4712 5168 8432 9424 10013 10336 16864 18848 20026 40052 66751 80104 133502 160208 267004 320416 534008 1068016 1134767 1268269 2069281 2136032 2269534 2536538 4138562 4539068 5073076 8277124 9078136 10146152 16554248 18156272 20292304 21560573 33108496 35177777 36312544 39316339 40584608 43121146 66216992 70355554 78632678 86242292 140711108 157265356 172484584 281422216 314530712 344969168 562844432 629061424 668377763 689938336 1125688864 1258122848 1336755526 2673511052 5347022104 10694044208 21388088416
- Sum of all divisors σ(n): 48445931520
- Sum of proper divisors (its aliquot sum) s(n): 27057843104
- 21388088416 is an abundant number, because the sum of its proper divisors (27057843104) is greater than itself. Its abundance is 5669754688
Bases of 21388088416
- Binary: 100111110101101010001010100011000002
- Hexadecimal: 0x4FAD45460
- Base-36: 9TPWYN4
Squares and roots of 21388088416
- 21388088416 squared (213880884162) is 457450326090633389056
- 21388088416 cubed (213880884163) is 9783988020354498554571454775296
-
The
square root of 21388088416 is 146246.6697603743 -
The
cube root of 21388088416 is 2775.8158861025
Scales and comparisons
How big is 21388088416?- 21,388,088,416 seconds is equal to 680 years, 3 weeks, 6 days, 7 hours, 40 minutes, 16 seconds.
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To count from 1 to 21,388,088,416 would take you about one thousand, three hundred sixty 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 21388088416 cubic inches would be around 231.3 feet tall.
Recreational maths with 21388088416
- 21388088416 backwards is 61488088312
- The number of decimal digits it has is: 11
- The sum of 21388088416's digits is 49
- More coming soon!
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