21018676224

Names of 21018676224

• Cardinal: 21018676224 can be written as Twenty-one billion, eighteen million, six hundred seventy-six thousand, two hundred twenty-four.

Scientific notation

• Scientific notation: 2.1018676224 × 10¹⁰

Factors of 21018676224

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 515

Divisors of 21018676224

• Number of divisors d(n): 528
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 23 24 26 28 32 39 42 46 48 49 52 56 64 69 78 84 91 92 96 98 104 112 128 138 147 156 161 168 182 184 192 196 208 224 256 273 276 294 299 312 322 336 364 368 384 392 416 448 467 483 512 546 552 588 598 624 637 644 672 728 736 768 784 832 896 897 934 966 1024 1092 1104 1127 1176 1196 1248 1274 1288 1344 1401 1456 1472 1536 1568 1664 1792 1794 1868 1911 1932 2093 2184 2208 2254 2352 2392 2496 2548 2576 2688 2802 2912 2944 3072 3136 3269 3328 3381 3584 3588 3736 3822 3864 4186 4368 4416 4508 4704 4784 4992 5096 5152 5376 5604 5824 5888 6071 6272 6279 6538 6656 6762 7168 7176 7472 7644 7728 8372 8736 8832 9016 9408 9568 9807 9984 10192 10304 10741 10752 11208 11648 11776 12142 12544 12558 13076 13312 13524 14352 14651 14944 15288 15456 16744 17472 17664 18032 18213 18816 19136 19614 19968 20384 20608 21482 21504 22416 22883 23296 23552 24284 25088 25116 26152 27048 28704 29302 29888 30576 30912 32223 33488 34944 35328 36064 36426 37632 38272 39228 39936 40768 41216 42497 42964 43953 44832 45766 46592 48568 50176 50232 52304 54096 57408 58604 59776 61152 61824 64446 66976 68649 69888 70656 72128 72852 75187 75264 76544 78456 81536 82432 84994 85928 87906 89664 91532 93184 97136 100464 104608 108192 114816 117208 119552 122304 123648 127491 128892 133952 137298 139633 139776 144256 145704 150374 150528 153088 156912 163072 164864 169988 171856 175812 179328 183064 194272 200928 209216 216384 225561 229632 234416 239104 244608 247296 254982 257784 267904 274596 279266 279552 288512 291408 297479 300748 306176 313824 326144 339976 343712 351624 358656 366128 388544 401856 418432 418899 432768 451122 459264 468832 478208 489216 494592 509964 515568 526309 535808 549192 558532 577024 582816 594958 601496 627648 652288 679952 687424 703248 717312 732256 777088 803712 836864 837798 865536 892437 902244 918528 937664 977431 978432 1019928 1031136 1052618 1071616 1098384 1117064 1154048 1165632 1189916 1202992 1255296 1359904 1374848 1406496 1434624 1464512 1554176 1578927 1607424 1673728 1675596 1731072 1784874 1804488 1875328 1954862 1956864 2039856 2062272 2105236 2143232 2196768 2234128 2331264 2379832 2405984 2510592 2719808 2749696 2812992 2929024 2932293 3108352 3157854 3214848 3347456 3351192 3462144 3569748 3608976 3750656 3909724 4079712 4124544 4210472 4393536 4468256 4662528 4759664 4811968 5021184 5439616 5499392 5625984 5858048 5864586 6216704 6315708 6429696 6702384 6842017 7139496 7217952 7501312 7819448 8159424 8249088 8420944 8787072 8936512 9325056 9519328 9623936 10042368 10879232 10998784 11251968 11716096 11729172 12631416 13404768 13684034 14278992 14435904 15002624 15638896 16318848 16498176 16841888 17574144 17873024 18650112 19038656 19247872 20526051 21758464 22503936 23432192 23458344 25262832 26809536 27368068 28557984 28871808 31277792 32637696 32996352 33683776 35148288 35746048 38077312 38495744 41052102 43516928 45007872 46916688 50525664 53619072 54736136 57115968 57743616 62555584 65275392 67367552 70296576 71492096 76154624 76991488 82104204 93833376 101051328 107238144 109472272 114231936 115487232 125111168 130550784 134735104 142984192 152309248 164208408 187666752 202102656 214476288 218944544 228463872 230974464 250222336 269470208 304618496 328416816 375333504 404205312 428952576 437889088 456927744 500444672 538940416 656833632 750667008 808410624 875778176 913855488 1000889344 1313667264 1501334016 1616821248 1751556352 2627334528 3002668032 3503112704 5254669056 7006225408 10509338112 21018676224
• Sum of all divisors σ(n): 73390157568
• Sum of proper divisors (its aliquot sum) s(n): 52371481344
• 21018676224 is an abundant number, because the sum of its proper divisors (52371481344) is greater than itself. Its abundance is 31352805120

Bases of 21018676224

• Binary: 10011100100110011111000110000000000₂
• Hexadecimal: 0x4E4CF8C00
• Base-36: 9NLZ6DC

Squares and roots of 21018676224

• 21018676224 squared (21018676224²) is 441784750209342898176
• 21018676224 cubed (21018676224³) is 9285730625350894596555144167424
• The square root of 21018676224 is 144978.1922359359
• The cube root of 21018676224 is 2759.7418115969

Scales and comparisons

• 21,018,676,224 seconds is equal to 668 years, 17 weeks, 17 hours, 10 minutes, 24 seconds.
• To count from 1 to 21,018,676,224 would take you about one thousand, three hundred thirty-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 21018676224 cubic inches would be around 230 feet tall.

Recreational maths with 21018676224

• 21018676224 backwards is 42267681012
• 21018676224 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21018676224's digits is 39
• More coming soon!