21225381840

Names of 21225381840

• Cardinal: 21225381840 can be written as Twenty-one billion, two hundred twenty-five million, three hundred eighty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.122538184 × 10¹⁰

Factors of 21225381840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 154

Divisors of 21225381840

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 19 20 24 26 30 36 38 39 40 41 45 48 52 57 60 65 71 72 76 78 80 82 90 95 104 114 117 120 123 130 142 144 152 156 164 171 180 190 195 205 208 213 228 234 240 246 247 260 284 285 304 312 328 342 355 360 369 380 390 410 426 456 468 492 494 520 533 568 570 585 615 624 639 656 684 710 720 738 741 760 779 780 820 852 855 912 923 936 984 988 1040 1065 1066 1136 1140 1170 1230 1235 1278 1349 1368 1420 1476 1482 1520 1558 1560 1599 1640 1681 1704 1710 1845 1846 1872 1968 1976 2130 2132 2223 2280 2337 2340 2460 2470 2556 2665 2698 2736 2769 2840 2911 2952 2964 3116 3120 3195 3198 3280 3362 3408 3420 3690 3692 3705 3895 3952 4047 4260 4264 4446 4560 4615 4674 4680 4797 4920 4940 5043 5112 5330 5396 5538 5680 5822 5904 5928 6232 6390 6396 6724 6745 6840 7011 7380 7384 7410 7790 7995 8094 8307 8405 8520 8528 8733 8892 9230 9348 9360 9594 9840 9880 10086 10127 10224 10660 10792 11076 11115 11644 11685 11856 12141 12464 12780 12792 13448 13490 13680 13845 14022 14555 14760 14768 14820 15129 15580 15990 16188 16614 16810 17040 17466 17537 17784 18460 18696 19188 19760 20172 20235 20254 21320 21584 21853 22152 22230 23288 23370 23985 24282 25215 25560 25584 26199 26896 26980 27690 28044 29110 29520 29640 30258 30381 31160 31939 31980 32376 33228 33620 34932 35055 35074 35568 36920 37392 37843 38376 40344 40470 40508 41535 42640 43665 43706 44304 44460 46576 46740 47970 48564 50430 50635 51120 52398 52611 53960 55309 55380 56088 58220 59280 60516 60705 60762 62320 63878 63960 64752 65559 66456 67240 69864 70110 70148 73840 75645 75686 76752 80688 80940 81016 83070 87330 87412 87685 88920 91143 93480 95817 95940 97128 100860 101270 104796 105222 107920 109265 110618 110760 112176 113529 116440 119351 121032 121410 121524 127756 127920 130995 131118 132912 134480 139728 140220 140296 151290 151372 151905 157833 159695 161880 162032 165927 166140 174660 174824 175370 177840 182286 186960 189215 191634 191880 194256 196677 201720 202540 209592 210444 218530 221236 221520 227058 232880 238702 242064 242820 243048 255512 261990 262236 263055 276545 280440 280592 287451 302580 302744 303810 315666 319390 323760 327795 331854 332280 340587 349320 349648 350740 358053 364572 378430 383268 383760 393354 403440 405080 415207 419184 420888 437060 442472 454116 455715 477404 479085 485640 486096 497781 511024 523980 524472 526110 553090 560880 567645 574902 596755 605160 605488 607620 631332 638780 655590 663708 664560 681174 698640 701480 716106 719017 729144 756860 766536 786708 789165 810160 829635 830414 841776 874120 884944 908232 911430 954808 958170 971280 983385 995562 1047960 1048944 1052220 1074159 1106180 1135290 1149804 1193510 1210320 1215240 1245621 1262664 1277560 1311180 1327416 1362348 1402960 1432212 1437255 1438034 1458288 1513720 1533072 1551563 1573416 1578330 1659270 1660828 1702935 1748240 1790265 1816464 1822860 1909616 1916340 1966770 1991124 2076035 2095920 2104440 2148318 2157051 2212360 2267669 2270580 2299608 2387020 2430480 2488905 2491242 2525328 2555120 2622360 2654832 2724696 2864424 2874510 2876068 3027440 3103126 3146832 3156660 3318540 3321656 3405870 3580530 3595085 3645720 3736863 3832680 3933540 3982248 4152070 4208880 4296636 4314102 4424720 4535338 4541160 4599216 4654689 4774040 4977810 4982484 5244720 5370795 5449392 5728848 5749020 5752136 6206252 6228105 6313320 6471153 6637080 6643312 6803007 6811740 7161060 7190170 7291440 7473726 7665360 7757815 7867080 7964496 8304140 8593272 8628204 9070676 9082320 9309378 9548080 9955620 9964968 10741590 10785255 11338345 11498040 11504272 12412504 12456210 12626640 12942306 13274160 13606014 13623480 13964067 14322120 14380340 14947452 15515630 15734160 16608280 17186544 17256408 18141352 18618756 18684315 19911240 19929936 20409021 21483180 21570510 22676690 22996080 23273445 24825008 24912420 25884612 27212028 27246960 27928134 28644240 28760680 29479697 29894904 31031260 32355765 33216560 34015035 34512816 36282704 37237512 37368630 39822480 40818042 42966360 43141020 45353380 46546890 49824840 51769224 54424056 55856268 57521360 58959394 59789808 62062520 64711530 68030070 69820335 74475024 74737260 81636084 85932720 86282040 88439091 90706760 93093780 99649680 102045105 103538448 108848112 111712536 117918788 124125040 129423060 136060140 139640670 147398485 149474520 163272168 172564080 176878182 181413520 186187560 204090210 223425072 235837576 258846120 265317273 272120280 279281340 294796970 298949040 326544336 353756364 372375120 408180420 442195455 471675152 517692240 530634546 544240560 558562680 589593940 707512728 816360840 884390910 1061269092 1117125360 1179187880 1326586365 1415025456 1632721680 1768781820 2122538184 2358375760 2653172730 3537563640 4245076368 5306345460 7075127280 10612690920 21225381840
• Sum of all divisors σ(n): 83990874240
• Sum of proper divisors (its aliquot sum) s(n): 62765492400
• 21225381840 is an abundant number, because the sum of its proper divisors (62765492400) is greater than itself. Its abundance is 41540110560

Bases of 21225381840

• Binary: 10011110001001000011001111111010000₂
• Hexadecimal: 0x4F1219FD0
• Base-36: 9R11LG0

Squares and roots of 21225381840

• 21225381840 squared (21225381840²) is 450516834253801785600
• 21225381840 cubed (21225381840³) is 9562391832384934371033813504000
• The square root of 21225381840 is 145689.3333089283
• The cube root of 21225381840 is 2768.7590978577

Scales and comparisons

• 21,225,381,840 seconds is equal to 674 years, 46 weeks, 6 days, 3 hours, 24 minutes.
• To count from 1 to 21,225,381,840 would take you about one thousand, three hundred forty-nine 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 21225381840 cubic inches would be around 230.7 feet tall.

Recreational maths with 21225381840

• 21225381840 backwards is 04818352212
• 21225381840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21225381840's digits is 36
• More coming soon!