18420213888

Names of 18420213888

• Cardinal: 18420213888 can be written as Eighteen billion, four hundred twenty million, two hundred thirteen thousand, eight hundred eighty-eight.

Scientific notation

• Scientific notation: 1.8420213888 × 10¹⁰

Factors of 18420213888

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 516

Divisors of 18420213888

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 31 32 36 48 54 62 64 72 81 93 96 108 124 128 144 162 186 192 216 223 248 257 279 288 324 372 384 432 446 496 514 558 576 648 669 744 771 837 864 892 992 1028 1116 1152 1296 1338 1488 1542 1674 1728 1784 1984 2007 2056 2232 2313 2511 2592 2676 2976 3084 3348 3456 3568 3968 4014 4112 4464 4626 5022 5184 5352 5952 6021 6168 6696 6913 6939 7136 7967 8028 8224 8928 9252 10044 10368 10704 11904 12042 12336 13392 13826 13878 14272 15934 16056 16448 17856 18063 18504 20088 20739 20817 21408 23901 24084 24672 26784 27652 27756 28544 31868 32112 32896 35712 36126 37008 40176 41478 41634 42816 47802 48168 49344 53568 55304 55512 57311 62217 63736 64224 71703 72252 74016 80352 82956 83268 85632 95604 96336 98688 107136 110608 111024 114622 124434 127472 128448 143406 144504 148032 160704 165912 166536 171933 186651 191208 192672 215109 221216 222048 229244 248868 254944 256896 286812 289008 296064 321408 331824 333072 343866 373302 382416 385344 430218 442432 444096 458488 497736 509888 515799 559953 573624 578016 645327 663648 666144 687732 746604 764832 770688 860436 884864 888192 916976 995472 1019776 1031598 1119906 1147248 1156032 1290654 1327296 1332288 1375464 1493208 1529664 1547397 1720872 1776641 1833952 1990944 2063196 2239812 2294496 2312064 2581308 2654592 2664576 2750928 2986416 3059328 3094794 3441744 3553282 3667904 3981888 4126392 4479624 4588992 4642191 5162616 5329923 5501856 5972832 6189588 6883488 7106564 7335808 7963776 8252784 8959248 9177984 9284382 10325232 10659846 11003712 11945664 12379176 13766976 14213128 15989769 16505568 17918496 18568764 20650464 21319692 22007424 23891328 24758352 27533952 28426256 31979538 33011136 35836992 37137528 41300928 42639384 47969307 49516704 56852512 63959076 66022272 71673984 74275056 82601856 85278768 95938614 99033408 113705024 127918152 143907921 148550112 170557536 191877228 198066816 227410048 255836304 287815842 297100224 341115072 383754456 511672608 575631684 594200448 682230144 767508912 1023345216 1151263368 1535017824 2046690432 2302526736 3070035648 4605053472 6140071296 9210106944 18420213888
• Sum of all divisors σ(n): 57061509120
• Sum of proper divisors (its aliquot sum) s(n): 38641295232
• 18420213888 is an abundant number, because the sum of its proper divisors (38641295232) is greater than itself. Its abundance is 20221081344

Bases of 18420213888

• Binary: 10001001001111011100010100010000000₂
• Hexadecimal: 0x449EE2880
• Base-36: 8GMX400

Squares and roots of 18420213888

• 18420213888 squared (18420213888²) is 339304279679668076544
• 18420213888 cubed (18420213888³) is 6250057404813258094786035843072
• The square root of 18420213888 is 135721.0885897987
• The cube root of 18420213888 is 2640.9786454365

Scales and comparisons

• 18,420,213,888 seconds is equal to 585 years, 36 weeks, 4 days, 22 hours, 4 minutes, 48 seconds.
• To count from 1 to 18,420,213,888 would take you about one thousand, one hundred seventy-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 18420213888 cubic inches would be around 220.1 feet tall.

Recreational maths with 18420213888

• 18420213888 backwards is 88831202481
• The number of decimal digits it has is: 11
• The sum of 18420213888's digits is 45
• More coming soon!