21398888700

Names of 21398888700

• Cardinal: 21398888700 can be written as Twenty-one billion, three hundred ninety-eight million, eight hundred eighty-eight thousand, seven hundred.

Scientific notation

• Scientific notation: 2.13988887 × 10¹⁰

Factors of 21398888700

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 133

Divisors of 21398888700

• Number of divisors d(n): 486
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 19 20 21 25 28 30 35 36 38 42 45 50 57 60 63 70 75 76 84 90 95 97 100 105 114 126 133 140 150 171 175 180 190 194 210 225 228 252 266 285 291 300 315 342 350 361 380 388 399 420 450 475 485 525 532 570 582 630 665 679 684 700 722 798 855 873 900 950 970 1050 1083 1140 1164 1197 1260 1330 1358 1425 1444 1455 1575 1596 1710 1746 1805 1843 1900 1940 1995 2037 2100 2166 2394 2425 2527 2660 2716 2850 2910 3150 3249 3325 3395 3420 3492 3610 3686 3990 4074 4275 4332 4365 4788 4850 5054 5415 5529 5700 5820 5985 6111 6300 6498 6650 6790 7220 7275 7372 7581 7980 8148 8550 8730 9025 9215 9409 9700 9975 10108 10185 10830 11058 11970 12222 12635 12901 12996 13300 13580 14550 15162 16245 16587 16975 17100 17460 18050 18430 18818 19950 20370 21660 21825 22116 22743 23940 24444 25270 25802 27075 27645 28227 29100 29925 30324 30555 32490 33174 33950 35017 36100 36860 37636 37905 38703 39900 40740 43650 45486 46075 47045 50540 50925 51604 54150 55290 56454 59850 61110 63175 64505 64980 65863 66348 67900 70034 75810 77406 81225 82935 84681 87300 90972 92150 94090 101850 105051 108300 110580 112908 113715 116109 119700 122220 126350 129010 131726 138225 140068 141135 151620 152775 154812 162450 165870 169362 175085 178771 184300 188180 189525 193515 197589 203700 210102 227430 232218 235225 245119 252700 258020 263452 276450 282270 305550 315153 322525 324900 329315 331740 338724 350170 357542 379050 387030 395178 414675 420204 423405 454860 464436 470450 490238 525255 536313 552900 564540 568575 580545 592767 611100 630306 645050 658630 700340 705675 715084 735357 758100 774060 790356 829350 846810 875425 893855 940900 967575 980476 987945 1050510 1072626 1137150 1161090 1185534 1225595 1251397 1260612 1290100 1317260 1411350 1470714 1575765 1608939 1646575 1658700 1693620 1750850 1787710 1935150 1975890 2101020 2117025 2145252 2206071 2274300 2322180 2371068 2451190 2502794 2626275 2681565 2822700 2902725 2941428 2963835 3151530 3217878 3293150 3396649 3501700 3575420 3676785 3754191 3870300 3951780 4234050 4412142 4469275 4902380 4939725 5005588 5252550 5363130 5805450 5927670 6127975 6256985 6303060 6435756 6586300 6793298 7353570 7508382 7878825 8044695 8468100 8824284 8938550 9879450 10189947 10505100 10726260 11030355 11262573 11610900 11855340 12255950 12513970 13407825 13586596 14707140 14819175 15016764 15757650 16089390 16983245 17877100 18383925 18770955 19758900 20379894 22060710 22525146 23776543 24511900 25027940 26815650 29638350 30569841 31284925 31515300 32178780 33966490 36767850 37541910 40223475 40759788 44121420 45050292 47553086 50949735 53631300 55151775 56312865 59276700 61139682 62569850 67932980 71329629 73535700 75083820 80446950 84916225 93854775 95106172 101899470 110303550 112625730 118882715 122279364 125139700 142659258 152849205 160893900 169832450 187709550 203798940 213988887 220607100 225251460 237765430 254748675 281564325 285318516 305698410 339664900 356648145 375419100 427977774 475530860 509497350 563128650 594413575 611396820 713296290 764246025 855955548 1018994700 1069944435 1126257300 1188827150 1426592580 1528492050 1783240725 2139888870 2377654300 3056984100 3566481450 4279777740 5349722175 7132962900 10699444350 21398888700
• Sum of all divisors σ(n): 81745064856
• Sum of proper divisors (its aliquot sum) s(n): 60346176156
• 21398888700 is an abundant number, because the sum of its proper divisors (60346176156) is greater than itself. Its abundance is 38947287456

Bases of 21398888700

• Binary: 10011111011011110010010000011111100₂
• Hexadecimal: 0x4FB7920FC
• Base-36: 9TWCG70

Squares and roots of 21398888700

• 21398888700 squared (21398888700²) is 457912437594987690000
• 21398888700 cubed (21398888700³) is 9798817286440837256180103000000
• The square root of 21398888700 is 146283.5899887613
• The cube root of 21398888700 is 2776.2830395089

Scales and comparisons

• 21,398,888,700 seconds is equal to 680 years, 21 weeks, 5 days, 7 hours, 45 minutes.
• To count from 1 to 21,398,888,700 would take you about one thousand, three hundred sixty 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 21398888700 cubic inches would be around 231.4 feet tall.

Recreational maths with 21398888700

• 21398888700 backwards is 00788889312
• The number of decimal digits it has is: 11
• The sum of 21398888700's digits is 54
• More coming soon!