21001731480

Names of 21001731480

• Cardinal: 21001731480 can be written as Twenty-one billion, one million, seven hundred thirty-one thousand, four hundred eighty.

Scientific notation

• Scientific notation: 2.100173148 × 10¹⁰

Factors of 21001731480

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1104

Divisors of 21001731480

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 23 24 30 36 40 43 45 46 60 61 69 72 86 90 92 115 120 122 129 138 172 180 183 184 207 215 230 244 258 276 305 344 345 360 366 387 414 430 460 488 516 549 552 610 645 690 732 774 828 860 915 920 967 989 1032 1035 1098 1220 1290 1380 1403 1464 1548 1656 1720 1830 1934 1935 1978 2070 2196 2440 2580 2623 2745 2760 2806 2901 2967 3096 3660 3868 3870 3956 4140 4209 4392 4835 4945 5160 5246 5490 5612 5802 5934 7015 7320 7736 7740 7869 7912 8280 8418 8703 8901 9670 9890 10492 10980 11224 11604 11868 12627 13115 14030 14505 14835 15480 15738 16836 17406 17802 19340 19780 20984 21045 21960 22241 23208 23607 23736 25254 26230 28060 29010 29670 31476 33672 34812 35604 38680 39345 39560 41581 42090 43515 44482 44505 47214 50508 52460 56120 58020 58987 59340 60329 62952 63135 66723 69624 71208 78690 83162 84180 87030 88964 89010 94428 101016 104920 111205 116040 117974 118035 118680 120658 124743 126270 133446 157380 166324 168360 174060 176961 177928 178020 180987 188856 200169 207905 222410 235948 236070 241316 249486 252540 266892 294935 301645 314760 332648 333615 348120 353922 356040 361974 374229 400338 415810 444820 471896 472140 482632 498972 505080 530883 533784 542961 589870 603290 623715 667230 707844 723948 748458 800676 831620 884805 889640 904935 944280 956363 997944 1000845 1061766 1085922 1179740 1206580 1247430 1334460 1356701 1415688 1447896 1496916 1601352 1663240 1769610 1809870 1871145 1912726 2001690 2123532 2171844 2359480 2413160 2494860 2536441 2654415 2668920 2713402 2714805 2869089 2993832 3539220 3619740 3742290 3825452 4003380 4070103 4247064 4343688 4781815 4989720 5072882 5308830 5426804 5429610 5738178 6783505 7078440 7239480 7484580 7609323 7650904 8006760 8140206 8607267 9563630 10145764 10617660 10853608 10859220 11476356 12210309 12682205 13567010 14345445 14969160 15218646 16280412 17214534 19127260 20291528 20350515 21235320 21718440 22827969 22952712 24420618 25364410 27134020 28690890 30437292 32560824 34429068 38046615 38254520 40701030 43036335 45655938 48841236 50728820 54268040 57381780 58338143 60874584 61051545 68858136 76093230 81402060 86072670 91311876 97682472 101457640 114139845 114763560 116676286 122103090 152186460 162804120 172145340 175014429 182623752 228279690 233352572 244206180 291690715 304372920 344290680 350028858 456559380 466705144 488412360 525043287 583381430 700057716 875072145 913118760 1050086574 1166762860 1400115432 1750144290 2100173148 2333525720 2625216435 3500288580 4200346296 5250432870 7000577160 10500865740 21001731480
• Sum of all divisors σ(n): 74150968320
• Sum of proper divisors (its aliquot sum) s(n): 53149236840
• 21001731480 is an abundant number, because the sum of its proper divisors (53149236840) is greater than itself. Its abundance is 32147505360

Bases of 21001731480

• Binary: 10011100011110011001111110110011000₂
• Hexadecimal: 0x4E3CCFD98
• Base-36: 9NBVZQ0

Squares and roots of 21001731480

• 21001731480 squared (21001731480²) is 441072725158022990400
• 21001731480 cubed (21001731480³) is 9263290936920639412047417792000
• The square root of 21001731480 is 144919.7415123279
• The cube root of 21001731480 is 2759.0000000437

Scales and comparisons

• 21,001,731,480 seconds is equal to 667 years, 41 weeks, 14 hours, 18 minutes.
• To count from 1 to 21,001,731,480 would take you about one thousand, three hundred thirty-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 21001731480 cubic inches would be around 229.9 feet tall.

Recreational maths with 21001731480

• 21001731480 backwards is 08413710012
• The number of decimal digits it has is: 11
• The sum of 21001731480's digits is 27
• More coming soon!