21339947772

Names of 21339947772

• Cardinal: 21339947772 can be written as Twenty-one billion, three hundred thirty-nine million, nine hundred forty-seven thousand, seven hundred seventy-two.

Scientific notation

• Scientific notation: 2.1339947772 × 10¹⁰

Factors of 21339947772

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 142

Divisors of 21339947772

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 6 9 11 12 13 18 22 26 27 29 31 33 36 39 44 52 53 54 58 62 66 78 87 93 99 106 108 116 117 124 132 143 156 159 174 186 198 212 234 261 279 286 297 318 319 341 348 351 372 377 396 403 429 468 477 522 558 572 583 594 636 638 682 689 702 754 783 806 837 841 858 899 954 957 1023 1044 1116 1131 1166 1188 1209 1276 1287 1364 1378 1404 1431 1508 1537 1566 1612 1643 1674 1682 1716 1749 1798 1908 1914 2046 2067 2262 2332 2418 2523 2574 2697 2756 2862 2871 3069 3074 3132 3286 3348 3364 3393 3498 3596 3627 3828 3861 4092 4134 4147 4433 4524 4611 4836 4929 5046 5148 5247 5394 5724 5742 6138 6148 6201 6572 6786 6996 7254 7569 7579 7722 8091 8268 8294 8613 8866 9207 9222 9251 9858 9889 10092 10179 10494 10788 10881 10933 11484 11687 12276 12402 12441 13299 13572 13833 14508 14787 15138 15158 15444 15741 16182 16588 16907 17226 17732 18073 18414 18444 18502 18603 19716 19778 19981 20358 20988 21359 21762 21866 22707 22737 23374 24273 24804 24882 26071 26598 27666 27753 29574 29667 30276 30316 31482 32364 32799 33814 34452 35061 36146 36828 37004 37206 37323 39556 39897 39962 40716 41499 42718 43524 43732 44361 44573 45414 45474 46748 47647 48546 49764 50721 52142 53196 54219 55332 55506 59148 59334 59943 62964 64077 65598 67628 68211 70122 72292 74412 74646 78213 79794 79924 82998 83259 85436 88722 89001 89146 90828 90948 95294 97092 98397 101442 104284 105183 108438 111012 111969 118668 119691 119886 120263 128154 128557 131196 133719 136422 140244 142941 149292 152163 156426 159588 162657 165996 166518 177444 178002 178292 179829 190588 192231 196794 202884 204633 210366 216876 219791 223938 234639 234949 239382 239772 240526 249777 256308 257114 267003 267438 272844 285882 286781 295191 304326 312852 315549 325314 333036 338923 356004 359658 360789 384462 385671 393588 401157 409266 420732 428823 439582 447876 456489 469278 469898 478764 481052 487971 490303 499554 514228 524117 534006 534876 539487 571764 573562 576693 579449 590382 608652 619411 631098 650628 659373 677846 703917 704847 719316 721578 768924 771342 802314 818532 857646 860343 879164 912978 938556 939796 975942 980606 999108 1016769 1048234 1068012 1078974 1082367 1147124 1153386 1157013 1158898 1180764 1203471 1238822 1262196 1286469 1318746 1355692 1381763 1407834 1409694 1443156 1470909 1542684 1572351 1604628 1715292 1720686 1738347 1825956 1858233 1951884 1961212 1978119 2033538 2096468 2114541 2157948 2164734 2306772 2314026 2317796 2406942 2477644 2572938 2581029 2637492 2763526 2815668 2819388 2941818 3050307 3144702 3247101 3441372 3471039 3476694 3716466 3728153 3956238 4067076 4145289 4229082 4329468 4412727 4628052 4717053 4813884 5145876 5162058 5215041 5527052 5574699 5883636 5934357 6100614 6289404 6343623 6373939 6494202 6813521 6942078 6953388 7432932 7456306 7743087 7912476 8290578 8458164 8825454 9150921 9434106 10324116 10430082 11149398 11184459 11868714 12201228 12435867 12687246 12747878 12988404 13238181 13627042 13884156 14151159 14912612 15199393 15486174 15645123 16581156 16724097 17650908 17962919 18301842 18868212 19121817 20440563 20860164 22298796 22368918 23737428 24871734 25374492 25495756 26476362 27254084 28302318 30398786 30972348 31290246 33448194 33553377 35925838 36603684 37307601 38243634 40881126 44737836 45598179 49743468 52952724 53888757 56604636 57365451 60797572 61321689 62580492 66896388 67106754 71851676 74615202 76487268 81762252 91196358 100660131 107777514 114730902 122643378 134213508 136794537 149230404 161666271 172096353 182392716 183965067 197592109 201320262 215555028 229461804 245286756 273589074 323332542 344192706 367930134 395184218 402640524 410383611 484998813 547178148 592776327 646665084 688385412 735860268 790368436 820767222 969997626 1185552654 1641534444 1778328981 1939995252 2371105308 3556657962 5334986943 7113315924 10669973886 21339947772
• Sum of all divisors σ(n): 70799339520
• Sum of proper divisors (its aliquot sum) s(n): 49459391748
• 21339947772 is an abundant number, because the sum of its proper divisors (49459391748) is greater than itself. Its abundance is 28119443976

Bases of 21339947772

• Binary: 10011110111111101011100001011111100₂
• Hexadecimal: 0x4F7F5C2FC
• Base-36: 9SX9530

Squares and roots of 21339947772

• 21339947772 squared (21339947772²) is 455393370911687763984
• 21339947772 cubed (21339947772³) is 9718070750970440907790022643648
• The square root of 21339947772 is 146081.9898960855
• The cube root of 21339947772 is 2773.7317050099

Scales and comparisons

• 21,339,947,772 seconds is equal to 678 years, 28 weeks, 2 days, 3 hours, 16 minutes, 12 seconds.
• To count from 1 to 21,339,947,772 would take you about one thousand, three hundred fifty-seven 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 21339947772 cubic inches would be around 231.1 feet tall.

Recreational maths with 21339947772

• 21339947772 backwards is 27774993312
• 21339947772 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21339947772's digits is 54
• More coming soon!