20421629440
20,421,629,440 is an even composite number composed of five prime numbers multiplied together.
What does the number 20421629440 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 160 divisors.
20421629440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 20421629440:
29 × 5 × 17 × 31 × 15137
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 17 × 31 × 15137)See below for interesting mathematical facts about the number 20421629440 from the Numbermatics database.
Names of 20421629440
- Cardinal: 20421629440 can be written as Twenty billion, four hundred twenty-one million, six hundred twenty-nine thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.042162944 × 1010
Factors of 20421629440
Divisors of 20421629440
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 4 5 8 10 16 17 20 31 32 34 40 62 64 68 80 85 124 128 136 155 160 170 248 256 272 310 320 340 496 512 527 544 620 640 680 992 1054 1088 1240 1280 1360 1984 2108 2176 2480 2560 2635 2720 3968 4216 4352 4960 5270 5440 7936 8432 8704 9920 10540 10880 15137 15872 16864 19840 21080 21760 30274 33728 39680 42160 43520 60548 67456 75685 79360 84320 121096 134912 151370 168640 242192 257329 269824 302740 337280 469247 484384 514658 605480 674560 938494 968768 1029316 1210960 1286645 1349120 1876988 1937536 2058632 2346235 2421920 2573290 3753976 3875072 4117264 4692470 4843840 5146580 7507952 7750144 7977199 8234528 9384940 9687680 10293160 15015904 15954398 16469056 18769880 19375360 20586320 30031808 31908796 32938112 37539760 38750720 39885995 41172640 60063616 63817592 65876224 75079520 79771990 82345280 120127232 127635184 131752448 150159040 159543980 164690560 240254464 255270368 300318080 319087960 329381120 510540736 600636160 638175920 658762240 1021081472 1201272320 1276351840 2042162944 2552703680 4084325888 5105407360 10210814720 20421629440
- Sum of all divisors σ(n): 53520217344
- Sum of proper divisors (its aliquot sum) s(n): 33098587904
- 20421629440 is an abundant number, because the sum of its proper divisors (33098587904) is greater than itself. Its abundance is 12676958464
Bases of 20421629440
- Binary: 100110000010011100101010110000000002
- Hexadecimal: 0x4C1395600
- Base-36: 9DQIE4G
Squares and roots of 20421629440
- 20421629440 squared (204216294402) is 417042948984674713600
- 20421629440 cubed (204216294403) is 8516696564729851240077328384000
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The
square root of 20421629440 is 142904.2666962747 -
The
cube root of 20421629440 is 2733.3597639059
Scales and comparisons
How big is 20421629440?- 20,421,629,440 seconds is equal to 649 years, 17 weeks, 6 days, 10 hours, 50 minutes, 40 seconds.
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To count from 1 to 20,421,629,440 would take you about one thousand, two hundred ninety-eight 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 20421629440 cubic inches would be around 227.8 feet tall.
Recreational maths with 20421629440
- 20421629440 backwards is 04492612402
- 20421629440 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 20421629440's digits is 34
- More coming soon!
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