21643627740

Names of 21643627740

• Cardinal: 21643627740 can be written as Twenty-one billion, six hundred forty-three million, six hundred twenty-seven thousand, seven hundred forty.

Scientific notation

• Scientific notation: 2.164362774 × 10¹⁰

Factors of 21643627740

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 735

Divisors of 21643627740

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 31 35 42 43 60 62 67 70 84 86 93 105 124 129 134 140 155 172 186 201 210 215 217 258 268 301 310 335 372 402 420 430 434 465 469 516 577 602 620 645 651 670 804 860 868 903 930 938 1005 1085 1154 1204 1290 1302 1333 1340 1407 1505 1731 1806 1860 1876 2010 2077 2170 2308 2345 2580 2604 2666 2814 2881 2885 3010 3255 3462 3612 3999 4020 4039 4154 4340 4515 4690 5332 5628 5762 5770 6020 6231 6510 6665 6924 7035 7998 8078 8308 8643 8655 9030 9331 9380 10385 11524 11540 12117 12462 13020 13330 14070 14405 14539 15996 16156 17286 17310 17887 18060 18662 19995 20167 20195 20770 24234 24811 24924 26660 27993 28140 28810 29078 31155 34572 34620 35774 37324 38659 39990 40334 40390 41540 43215 43617 46655 48468 49622 53661 55986 57620 58156 60501 60585 62310 71548 72695 74433 77318 79980 80668 80780 86430 87234 89311 89435 93310 99244 100835 107322 111972 115977 121002 121170 124055 124620 125209 139965 145390 148866 154636 172860 173677 174468 178622 178870 186620 193295 201670 214644 218085 231954 242004 242340 248110 250418 267933 268305 270613 279930 290780 297732 302505 347354 357244 357740 372165 375627 386590 403340 436170 446555 463908 496220 500836 521031 535866 536610 541226 559860 579885 605010 625177 626045 694708 744330 751254 769141 773180 811839 868385 872340 893110 1042062 1071732 1073220 1082452 1159770 1198429 1210020 1250354 1252090 1339665 1353065 1488660 1502508 1538282 1623678 1662337 1736770 1786220 1875531 1878135 2084124 2307423 2319540 2396858 2500708 2504180 2605155 2679330 2706130 3076564 3125885 3247356 3324674 3473540 3595287 3751062 3756270 3845705 4059195 4614846 4793716 4987011 5210310 5358660 5383987 5412260 5992145 6251770 6649348 7190574 7502124 7512540 7691410 8118390 8311685 8389003 9229692 9377655 9974022 10420620 10767974 11537115 11636359 11984290 12503540 14381148 15382820 16151961 16236780 16623370 16778006 17976435 18755310 19948044 21535948 23074230 23272718 23968580 24935055 25167009 26919935 32303922 33246740 33556012 34909077 35952870 37510620 41945015 46148460 46545436 49870110 50334018 51532447 53839870 58181795 64607844 69818154 71905740 80759805 83890030 99740220 100668036 103064894 107679740 116363590 125835045 139636308 154597341 161519610 167780060 174545385 206129788 232727180 251670090 257662235 309194682 323039220 349090770 360727129 503340180 515324470 618389364 698181540 721454258 772986705 1030648940 1082181387 1442908516 1545973410 1803635645 2164362774 3091946820 3607271290 4328725548 5410906935 7214542580 10821813870 21643627740
• Sum of all divisors σ(n): 74377003008
• Sum of proper divisors (its aliquot sum) s(n): 52733375268
• 21643627740 is an abundant number, because the sum of its proper divisors (52733375268) is greater than itself. Its abundance is 31089747528

Bases of 21643627740

• Binary: 10100001010000011111000110011011100₂
• Hexadecimal: 0x50A0F8CDC
• Base-36: 9XY221O

Squares and roots of 21643627740

• 21643627740 squared (21643627740²) is 468446621747697507600
• 21643627740 cubed (21643627740³) is 10138884297167753056620220824000
• The square root of 21643627740 is 147117.7342810855
• The cube root of 21643627740 is 2786.8270579967

Scales and comparisons

• 21,643,627,740 seconds is equal to 688 years, 10 weeks, 2 days, 22 hours, 49 minutes.
• To count from 1 to 21,643,627,740 would take you about one thousand, three hundred seventy-six 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 21643627740 cubic inches would be around 232.2 feet tall.

Recreational maths with 21643627740

• 21643627740 backwards is 04772634612
• 21643627740 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21643627740's digits is 42
• More coming soon!