20321537985
20,321,537,985 is an odd composite number composed of five prime numbers multiplied together.
20321537985 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 20321537985:
34 × 5 × 72 × 53 × 1392
(3 × 3 × 3 × 3 × 5 × 7 × 7 × 53 × 139 × 139)See below for interesting mathematical facts about the number 20321537985 from the Numbermatics database.
Names of 20321537985
- Cardinal: 20321537985 can be written as Twenty billion, three hundred twenty-one million, five hundred thirty-seven thousand, nine hundred eighty-five.
Scientific notation
- Scientific notation: 2.0321537985 × 1010
Factors of 20321537985
Divisors of 20321537985
- Number of divisors d(n): 180
-
Complete list of divisors:
1 3 5 7 9 15 21 27 35 45 49 53 63 81 105 135 139 147 159 189 245 265 315 371 405 417 441 477 567 695 735 795 945 973 1113 1251 1323 1431 1855 2085 2205 2385 2597 2835 2919 3339 3753 3969 4293 4865 5565 6255 6615 6811 7155 7367 7791 8757 10017 11259 12985 14595 16695 18765 19321 19845 20433 21465 22101 23373 26271 30051 34055 36835 38955 43785 50085 51569 56295 57963 61299 66303 70119 78813 96605 102165 110505 116865 131355 135247 150255 154707 173889 183897 198909 210357 257845 289815 306495 331515 350595 360983 394065 405741 464121 521667 551691 596727 676235 773535 869445 919485 946729 994545 1024013 1051785 1082949 1217223 1392363 1565001 1804915 2028705 2320605 2608335 2758455 2840187 2983635 3072039 3248847 3651669 4177089 4733645 5120065 5414745 6086115 6961815 7168091 7825005 8520561 9216117 9746541 10955007 14200935 15360195 16244235 18258345 20885445 21504273 25561683 27648351 29239623 35840455 42602805 46080585 48732705 50176637 54775035 64512819 76685049 82945053 107521365 127808415 138241755 146198115 150529911 193538457 250883185 322564095 383425245 414725265 451589733 580615371 752649555 967692285 1354769199 2257948665 2903076855 4064307597 6773845995 20321537985
- Sum of all divisors σ(n): 43488095508
- Sum of proper divisors (its aliquot sum) s(n): 23166557523
- 20321537985 is an abundant number, because the sum of its proper divisors (23166557523) is greater than itself. Its abundance is 2845019538
Bases of 20321537985
- Binary: 100101110110100001000001111110000012
- Hexadecimal: 0x4BB420FC1
- Base-36: 9C2X329
Squares and roots of 20321537985
- 20321537985 squared (203215379852) is 412964906075797860225
- 20321537985 cubed (203215379853) is 8392082025291283505744058146625
-
The
square root of 20321537985 is 142553.6319600451 -
The
cube root of 20321537985 is 2728.8868242633
Scales and comparisons
How big is 20321537985?- 20,321,537,985 seconds is equal to 646 years, 8 weeks, 2 days, 23 hours, 39 minutes, 45 seconds.
-
To count from 1 to 20,321,537,985 would take you about one thousand, two hundred ninety-two 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 20321537985 cubic inches would be around 227.4 feet tall.
Recreational maths with 20321537985
- 20321537985 backwards is 58973512302
- 20321537985 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 20321537985's digits is 45
- More coming soon!
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