21147443460

Names of 21147443460

• Cardinal: 21147443460 can be written as Twenty-one billion, one hundred forty-seven million, four hundred forty-three thousand, four hundred sixty.

Scientific notation

• Scientific notation: 2.114744346 × 10¹⁰

Factors of 21147443460

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3984

Divisors of 21147443460

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 13 15 18 19 20 22 26 30 33 36 38 39 44 45 52 55 57 60 65 66 76 78 90 95 99 110 114 117 121 130 132 143 156 165 171 180 190 195 198 209 220 228 234 242 247 260 285 286 330 342 363 380 390 396 418 429 468 484 494 495 570 572 585 605 627 660 684 715 726 741 780 836 855 858 988 990 1045 1089 1140 1170 1210 1235 1254 1287 1430 1452 1482 1573 1710 1716 1815 1881 1980 2090 2145 2178 2223 2299 2340 2420 2470 2508 2574 2717 2860 2964 3135 3146 3420 3630 3705 3762 3931 4180 4290 4356 4446 4598 4719 4940 5148 5434 5445 6270 6292 6435 6897 7260 7410 7524 7862 7865 8151 8580 8892 9196 9405 9438 10868 10890 11115 11495 11793 12540 12870 13585 13794 14157 14820 15724 15730 16302 18810 18876 19655 20691 21780 22230 22990 23586 23595 24453 25740 27170 27588 28314 29887 31460 32604 34485 35379 37620 39310 40755 41382 43241 44460 45980 47172 47190 48906 51103 54340 56628 58965 59774 68970 70758 70785 74689 78620 81510 82764 86482 89661 94380 97812 102206 103455 117930 119548 122265 129723 137940 141516 141570 149378 149435 153309 163020 172964 176895 179322 204412 206910 216205 224067 235860 244530 255515 259446 268983 283140 298756 298870 306618 353790 358644 373445 389169 413820 432410 448134 448305 459927 475651 489060 511030 518892 537966 562133 597740 613236 648615 672201 707580 746890 766545 778338 821579 864820 896268 896610 919854 951302 970957 1022060 1075932 1120335 1124266 1297230 1344402 1344915 1426953 1493780 1533090 1556676 1643158 1686399 1793220 1839708 1902604 1941914 1945845 2240670 2248532 2299635 2378255 2464737 2594460 2688804 2689830 2810665 2853906 2912871 3066180 3286316 3361005 3372798 3883828 3891690 4107895 4280859 4481340 4599270 4756510 4854785 4929474 5059197 5379660 5621330 5707812 5825742 6183463 6722010 6745596 7134765 7394211 7783380 8215790 8431995 8561718 8738613 9037369 9198540 9513020 9709570 9858948 10118394 10680527 11242660 11651484 12323685 12366926 13444020 14269530 14564355 14788422 16431580 16863990 17123436 17477226 18074738 18550389 19419140 20236788 21361054 21404295 24647370 24733852 25295985 27112107 28539060 29128710 29576844 30917315 32041581 33727980 34954452 36149476 36971055 37100778 42722108 42808590 43693065 45186845 49294740 50591970 53402635 54224214 55651167 58257420 61834630 64083162 73942110 74201556 81336321 85617180 87386130 90373690 92751945 96124743 101183940 106805270 108448428 111302334 117485797 123669260 128166324 135560535 147884220 160207905 162672642 174772260 180747380 185503890 192249486 213610540 222604668 234971594 271121070 278255835 320415810 325345284 352457391 371007780 384498972 406681605 469943188 480623715 542242140 556511670 587428985 640831620 704914782 813363210 961247430 1057372173 1113023340 1174857970 1409829564 1626726420 1762286955 1922494860 2114744346 2349715940 3524573910 4229488692 5286860865 7049147820 10573721730 21147443460
• Sum of all divisors σ(n): 79949513280
• Sum of proper divisors (its aliquot sum) s(n): 58802069820
• 21147443460 is an abundant number, because the sum of its proper divisors (58802069820) is greater than itself. Its abundance is 37654626360

Bases of 21147443460

• Binary: 10011101100011111000110000100000100₂
• Hexadecimal: 0x4EC7C6104
• Base-36: 9PQN3T0

Squares and roots of 21147443460

• 21147443460 squared (21147443460²) is 447214364893896771600
• 21147443460 cubed (21147443460³) is 9457440496093490876487533736000
• The square root of 21147443460 is 145421.6058912843
• The cube root of 21147443460 is 2765.3660334209

Scales and comparisons

• 21,147,443,460 seconds is equal to 672 years, 22 weeks, 1 hour, 51 minutes.
• To count from 1 to 21,147,443,460 would take you about one thousand, three hundred forty-four 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 21147443460 cubic inches would be around 230.4 feet tall.

Recreational maths with 21147443460

• 21147443460 backwards is 06434474112
• 21147443460 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21147443460's digits is 36
• More coming soon!