21099988224

Names of 21099988224

• Cardinal: 21099988224 can be written as Twenty-one billion, ninety-nine million, nine hundred eighty-eight thousand, two hundred twenty-four.

Scientific notation

• Scientific notation: 2.1099988224 × 10¹⁰

Factors of 21099988224

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1929

Divisors of 21099988224

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 19 21 24 28 32 36 37 38 42 48 56 57 63 64 72 74 76 84 96 111 112 114 126 128 133 144 148 152 168 171 192 222 224 228 252 256 259 266 288 296 304 333 336 342 384 399 444 448 456 504 518 532 576 592 608 666 672 684 703 768 777 798 888 896 912 1008 1036 1064 1152 1184 1197 1216 1332 1344 1368 1406 1554 1596 1776 1792 1824 1861 2016 2072 2109 2128 2304 2331 2368 2394 2432 2664 2688 2736 2812 3108 3192 3552 3648 3722 4032 4144 4218 4256 4662 4736 4788 4864 4921 5328 5376 5472 5583 5624 6216 6327 6384 7104 7296 7444 8064 8288 8436 8512 9324 9472 9576 9842 10656 10944 11166 11248 12432 12654 12768 13027 14208 14592 14763 14888 16128 16576 16749 16872 17024 18648 19152 19684 21312 21888 22332 22496 24864 25308 25536 26054 28416 29526 29776 33152 33498 33744 34048 35359 37296 38304 39081 39368 42624 43776 44289 44664 44992 49728 50616 51072 52108 59052 59552 66304 66996 67488 68857 70718 74592 76608 78162 78736 85248 88578 89328 89984 99456 101232 102144 104216 106077 117243 118104 119104 133992 134976 137714 141436 149184 153216 156324 157472 177156 178656 179968 198912 202464 206571 208432 212154 234486 236208 238208 247513 267984 269952 275428 282872 298368 306432 312648 314944 318231 354312 357312 404928 413142 416864 424308 468972 472416 476416 481999 495026 535968 539904 550856 565744 596736 619713 625296 629888 636462 708624 714624 742539 809856 826284 833728 848616 937944 944832 963998 990052 1071936 1101712 1131488 1239426 1250592 1259776 1272924 1308283 1417248 1429248 1445997 1485078 1619712 1652568 1667456 1697232 1875888 1889664 1927996 1980104 2143872 2203424 2227617 2262976 2478852 2501184 2545848 2616566 2834496 2891994 2970156 3305136 3334912 3394464 3751776 3779328 3855992 3924849 3960208 4287744 4337991 4406848 4455234 4525952 4957704 5002368 5091696 5233132 5668992 5783988 5940312 6610272 6788928 7503552 7711984 7849698 7920416 8675982 8813696 8910468 9051904 9157981 9915408 10004736 10183392 10466264 11337984 11567976 11774547 11880624 13220544 13577856 15007104 15423968 15699396 15840832 17351964 17627392 17820936 18315962 19830816 20366784 20932528 23135952 23549094 23761248 26441088 27155712 27473943 30014208 30847936 31398792 31681664 34703928 35641872 36631924 39661632 40733568 41865056 46271904 47098188 47522496 52882176 54947886 61695872 62797584 63363328 69407856 71283744 73263848 79323264 81467136 82421829 83730112 92543808 94196376 95044992 109895772 123391744 125595168 138815712 142567488 146527696 158646528 164843658 167460224 185087616 188392752 190089984 219791544 251190336 277631424 285134976 293055392 329687316 334920448 370175232 376785504 439583088 502380672 555262848 570269952 586110784 659374632 753571008 879166176 1004761344 1110525696 1172221568 1318749264 1507142016 1758332352 2344443136 2637498528 3014284032 3516664704 5274997056 7033329408 10549994112 21099988224
• Sum of all divisors σ(n): 75205137280
• Sum of proper divisors (its aliquot sum) s(n): 54105149056
• 21099988224 is an abundant number, because the sum of its proper divisors (54105149056) is greater than itself. Its abundance is 33005160832

Bases of 21099988224

• Binary: 10011101001101010000100010100000000₂
• Hexadecimal: 0x4E9A84500
• Base-36: 9OYDZ40

Squares and roots of 21099988224

• 21099988224 squared (21099988224²) is 445209503052938674176
• 21099988224 cubed (21099988224³) is 9393915271629898073707772903424
• The square root of 21099988224 is 145258.3499286701
• The cube root of 21099988224 is 2763.2959741853

Scales and comparisons

• 21,099,988,224 seconds is equal to 670 years, 47 weeks, 3 days, 19 hours, 50 minutes, 24 seconds.
• To count from 1 to 21,099,988,224 would take you about one thousand, three hundred forty-one 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 21099988224 cubic inches would be around 230.3 feet tall.

Recreational maths with 21099988224

• 21099988224 backwards is 42288999012
• The number of decimal digits it has is: 11
• The sum of 21099988224's digits is 54
• More coming soon!