21137872210

Names of 21137872210

• Cardinal: 21137872210 can be written as Twenty-one billion, one hundred thirty-seven million, eight hundred seventy-two thousand, two hundred ten.

Scientific notation

• Scientific notation: 2.113787221 × 10¹⁰

Factors of 21137872210

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 441

Divisors of 21137872210

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 5 7 10 13 14 19 26 35 38 65 67 70 71 91 95 130 133 134 142 182 190 247 257 266 335 355 455 469 494 497 514 665 670 710 871 910 923 938 994 1235 1273 1285 1330 1349 1729 1742 1799 1846 2345 2470 2485 2546 2570 2698 3341 3458 3598 4355 4615 4690 4757 4883 4970 6097 6365 6461 6682 6745 8645 8710 8911 8995 9230 9443 9514 9766 12194 12730 12922 13490 16549 16705 17219 17290 17537 17822 17990 18247 18886 23387 23785 24415 30485 32305 33098 33299 33410 34181 34438 35074 36494 44555 46774 47215 47570 48830 60970 61841 63479 64610 66598 68362 82745 86095 87685 89110 90383 91235 94430 115843 116935 120533 122759 123682 126958 127729 165490 166495 170905 172190 175370 180766 182470 223847 231686 233870 237211 241066 245518 255458 309205 317395 327161 332990 341810 346693 432887 444353 447694 451915 474422 579215 602665 613795 618410 632681 634790 638645 654322 693386 865774 888706 903830 1119235 1158430 1174979 1186055 1205330 1222549 1227590 1265362 1277290 1566929 1635805 1660477 1733465 2164435 2221765 2238470 2290127 2349958 2372110 2426851 2445098 3133858 3163405 3271610 3320954 3466930 4253093 4328870 4443530 4507009 4580254 4853702 5874895 6112745 6326810 7834645 8224853 8302385 8506186 8557843 9014018 11450635 11749790 12134255 12225490 15669290 15893137 16449706 16604770 17115686 21265465 22535045 22901270 23228431 24268510 29771651 31549063 31786274 41124265 42530930 42789215 45070090 46456862 59543302 63098126 79465685 82248530 85578430 111251959 116142155 148858255 157745315 158931370 162599017 222503918 232284310 297716510 301969603 315490630 325198034 556259795 603939206 812995085 1112519590 1509848015 1625990170 2113787221 3019696030 4227574442 10568936105 21137872210
• Sum of all divisors σ(n): 50930933760
• Sum of proper divisors (its aliquot sum) s(n): 29793061550
• 21137872210 is an abundant number, because the sum of its proper divisors (29793061550) is greater than itself. Its abundance is 8655189340

Bases of 21137872210

• Binary: 10011101011111010100101010101010010₂
• Hexadecimal: 0x4EBEA5552
• Base-36: 9PKXYKY

Squares and roots of 21137872210

• 21137872210 squared (21137872210²) is 446809641566290284100
• 21137872210 cubed (21137872210³) is 9444605105624148269070394861000
• The square root of 21137872210 is 145388.6935425173
• The cube root of 21137872210 is 2764.9487725229

Scales and comparisons

• 21,137,872,210 seconds is equal to 672 years, 6 weeks, 1 day, 7 hours, 10 minutes, 10 seconds.
• To count from 1 to 21,137,872,210 would take you about one thousand, three hundred forty-four 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 21137872210 cubic inches would be around 230.4 feet tall.

Recreational maths with 21137872210

• 21137872210 backwards is 01227873112
• The number of decimal digits it has is: 11
• The sum of 21137872210's digits is 34
• More coming soon!