31221384920
31,221,384,920 is an even composite number composed of six prime numbers multiplied together.
31221384920 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 31221384920:
23 × 5 × 11 × 292 × 139 × 607
(2 × 2 × 2 × 5 × 11 × 29 × 29 × 139 × 607)See below for interesting mathematical facts about the number 31221384920 from the Numbermatics database.
Names of 31221384920
- Cardinal: 31221384920 can be written as Thirty-one billion, two hundred twenty-one million, three hundred eighty-four thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 3.122138492 × 1010
Factors of 31221384920
Divisors of 31221384920
- Number of divisors d(n): 192
-
Complete list of divisors:
1 2 4 5 8 10 11 20 22 29 40 44 55 58 88 110 116 139 145 220 232 278 290 319 440 556 580 607 638 695 841 1112 1160 1214 1276 1390 1529 1595 1682 2428 2552 2780 3035 3058 3190 3364 4031 4205 4856 5560 6070 6116 6380 6677 6728 7645 8062 8410 9251 12140 12232 12760 13354 15290 16124 16820 17603 18502 20155 24280 26708 30580 32248 33385 33640 35206 37004 40310 44341 46255 53416 61160 66770 70412 74008 80620 84373 88015 88682 92510 116899 133540 140824 161240 168746 176030 177364 185020 193633 221705 233798 267080 337492 352060 354728 370040 387266 421865 443410 467596 510487 584495 674984 704120 774532 843730 886820 928103 935192 968165 1020974 1168990 1285889 1549064 1687460 1773640 1856206 1936330 2041948 2337980 2446817 2552435 2571778 3374920 3712412 3872660 4083896 4640515 4675960 4893634 5104870 5143556 5615357 6429445 7424824 7745320 9281030 9787268 10209740 10287112 11230714 12234085 12858890 18562060 19574536 20419480 22461428 24468170 25717780 26914987 28076785 37124120 44922856 48936340 51435560 53829974 56153570 70957693 97872680 107659948 112307140 134574935 141915386 215319896 224614280 269149870 283830772 354788465 538299740 567661544 709576930 780534623 1076599480 1419153860 1561069246 2838307720 3122138492 3902673115 6244276984 7805346230 15610692460 31221384920
- Sum of all divisors σ(n): 80070681600
- Sum of proper divisors (its aliquot sum) s(n): 48849296680
- 31221384920 is an abundant number, because the sum of its proper divisors (48849296680) is greater than itself. Its abundance is 17627911760
Bases of 31221384920
- Binary: 111010001001111000010000110110110002
- Hexadecimal: 0x744F086D8
- Base-36: ECCEMS8
Squares and roots of 31221384920
- 31221384920 squared (312213849202) is 974774876322803406400
- 31221384920 cubed (312213849203) is 30433821624019639324701591488000
-
The
square root of 31221384920 is 176695.7410918555 -
The
cube root of 31221384920 is 3148.8409246965
Scales and comparisons
How big is 31221384920?- 31,221,384,920 seconds is equal to 992 years, 38 weeks, 4 days, 14 hours, 55 minutes, 20 seconds.
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To count from 1 to 31,221,384,920 would take you about one thousand, nine hundred eighty-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 31221384920 cubic inches would be around 262.4 feet tall.
Recreational maths with 31221384920
- 31221384920 backwards is 02948312213
- The number of decimal digits it has is: 11
- The sum of 31221384920's digits is 35
- More coming soon!
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