21479510640

Names of 21479510640

• Cardinal: 21479510640 can be written as Twenty-one billion, four hundred seventy-nine million, five hundred ten thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.147951064 × 10¹⁰

Factors of 21479510640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 510

Divisors of 21479510640

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 19 20 21 24 28 30 31 35 38 40 42 48 49 56 57 60 62 70 76 80 84 93 95 98 105 112 114 120 124 133 140 147 152 155 168 186 190 196 210 217 228 240 245 248 266 280 285 294 304 310 336 343 372 380 392 399 420 434 443 456 465 490 496 532 560 570 588 589 620 651 665 686 735 744 760 784 798 840 868 886 912 930 931 980 1029 1064 1085 1140 1176 1178 1240 1302 1329 1330 1372 1470 1488 1519 1520 1596 1680 1715 1736 1767 1772 1860 1862 1960 1995 2058 2128 2170 2215 2280 2352 2356 2480 2604 2658 2660 2744 2793 2940 2945 3038 3101 3192 3255 3430 3472 3534 3544 3720 3724 3920 3990 4116 4123 4340 4430 4557 4560 4655 4712 5145 5208 5316 5320 5488 5586 5880 5890 6076 6202 6384 6510 6517 6645 6860 7068 7088 7440 7448 7595 7980 8232 8246 8417 8680 8835 8860 9114 9303 9310 9424 10290 10416 10632 10633 10640 11172 11760 11780 12152 12369 12404 13020 13034 13290 13720 13733 13965 14136 14896 15190 15505 15960 16464 16492 16834 17360 17670 17720 18228 18606 18620 19551 20580 20615 21264 21266 21707 22344 22785 23560 24304 24738 24808 25251 26040 26068 26580 27440 27466 27930 28272 28861 30380 31010 31899 31920 32585 32984 33668 35340 35440 36456 37212 37240 39102 41160 41199 41230 42085 42532 43414 44688 45570 46515 47120 49476 49616 50502 52080 52136 53160 53165 54932 55860 57722 58919 60760 61845 62020 63798 65121 65170 65968 67336 68665 70680 72912 74424 74480 78204 82320 82398 82460 84170 85064 86583 86828 91140 93030 96131 97755 98952 101004 104272 106320 106330 108535 109864 111720 115444 117838 121520 123690 124040 126255 127596 130242 130340 134672 137330 141360 144305 148848 151949 156408 159495 164796 164920 168340 170128 173166 173656 176757 182280 186060 192262 195510 197904 202008 202027 205995 212660 217070 219728 223440 230888 235676 247380 248080 252510 255192 260484 260680 260927 274660 288393 288610 294595 303898 312816 318990 325605 329592 329840 336680 346332 347312 353514 364560 372120 384524 391020 404016 404054 411990 412433 425320 432915 434140 455847 461776 471352 480655 494760 505020 510384 520968 521360 521854 549320 576786 577220 589190 606081 607796 637980 651210 659184 672917 673360 692664 707028 744240 759745 769048 782040 782781 808108 823980 824866 850640 865830 868280 883785 911694 942704 961310 989520 1010040 1010135 1041936 1043708 1098640 1153572 1154440 1178380 1212162 1215592 1237299 1275960 1302420 1304635 1345834 1385328 1414056 1441965 1519490 1538096 1564080 1565562 1616216 1647960 1649732 1731660 1736560 1767570 1823388 1826489 1922620 2018751 2020080 2020270 2062165 2087416 2279235 2307144 2308880 2356760 2424324 2431184 2474598 2551920 2604840 2609270 2691668 2828112 2883930 2887031 3030405 3038980 3131124 3232432 3295920 3299464 3364585 3463320 3535140 3646776 3652978 3845240 3913905 4037502 4040540 4124330 4174832 4558470 4614288 4710419 4713520 4848648 4949196 5209680 5218540 5383336 5479467 5767860 5774062 6060810 6077960 6186495 6262248 6598928 6729170 6926640 7070280 7293552 7305956 7690480 7827810 8075004 8081080 8248660 8661093 9116940 9132445 9420838 9697296 9898392 10093755 10437080 10766672 10958934 11535720 11548124 12121620 12155920 12372990 12524496 12785423 13458340 14131257 14140560 14435155 14611912 15655620 16150008 16162160 16497320 17322186 18233880 18264890 18841676 19796784 20187510 20874160 21917868 23071440 23096248 23552095 24243240 24745980 25570846 26916680 27397335 28262514 28870310 29223824 31311240 32300016 32994640 34644372 36467760 36529780 37683352 38356269 40375020 43305465 43835736 46192496 47104190 48486480 49491960 51141692 53833360 54794670 56525028 57740620 62622480 63927115 69288744 70656285 73059560 75366704 76712538 80750040 86610930 87671472 89497961 94208380 98983920 102283384 109589340 113050056 115481240 127854230 138577488 141312570 146119120 153425076 161500080 173221860 178995922 188416760 191781345 204566768 219178680 226100112 230962480 255708460 268493883 282625140 306850152 346443720 357991844 376833520 383562690 438357360 447489805 511416920 536987766 565250280 613700304 692887440 715983688 767125380 894979610 1022833840 1073975532 1130500560 1342469415 1431967376 1534250760 1789959220 2147951064 2684938830 3068501520 3579918440 4295902128 5369877660 7159836880 10739755320 21479510640
• Sum of all divisors σ(n): 84566016000
• Sum of proper divisors (its aliquot sum) s(n): 63086505360
• 21479510640 is an abundant number, because the sum of its proper divisors (63086505360) is greater than itself. Its abundance is 41606994720

Bases of 21479510640

• Binary: 10100000000010001110101001001110000₂
• Hexadecimal: 0x500475270
• Base-36: 9V8CGHC

Squares and roots of 21479510640

• 21479510640 squared (21479510640²) is 461369377333873209600
• 21479510640 cubed (21479510640³) is 9909988449413104438014150144000
• The square root of 21479510640 is 146558.8981945483
• The cube root of 21479510640 is 2779.7652890881

Scales and comparisons

• 21,479,510,640 seconds is equal to 682 years, 51 weeks, 10 hours, 44 minutes.
• To count from 1 to 21,479,510,640 would take you about one thousand, three hundred sixty-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 21479510640 cubic inches would be around 231.6 feet tall.

Recreational maths with 21479510640

• 21479510640 backwards is 04601597412
• The number of decimal digits it has is: 11
• The sum of 21479510640's digits is 39
• More coming soon!