18390069984

Names of 18390069984

• Cardinal: 18390069984 can be written as Eighteen billion, three hundred ninety million, sixty-nine thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 1.8390069984 × 10¹⁰

Factors of 18390069984

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 686

Divisors of 18390069984

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 11 12 13 16 22 24 26 31 32 33 39 44 48 52 62 66 78 79 88 93 96 104 124 132 143 156 158 176 186 208 237 248 264 286 312 316 341 352 372 403 416 429 474 496 528 547 572 624 632 682 744 806 858 869 948 992 1023 1027 1056 1094 1144 1209 1248 1264 1364 1488 1612 1641 1716 1738 1896 2046 2054 2188 2288 2418 2449 2528 2607 2728 2976 3081 3224 3282 3432 3476 3792 4092 4108 4376 4433 4576 4836 4898 5214 5456 6017 6162 6448 6564 6864 6952 7111 7347 7584 8184 8216 8752 8866 9672 9796 10428 10912 11297 12034 12324 12896 13128 13299 13728 13904 14222 14694 16368 16432 16957 17504 17732 18051 19344 19592 20856 21333 22594 24068 24648 26256 26598 26939 27808 28444 29388 31837 32736 32864 33891 33914 35464 36102 38688 39184 41712 42666 43213 45188 48136 49296 50871 52512 53196 53878 56888 58776 63674 67782 67828 70928 72204 78221 78368 80817 83424 85332 86426 90376 95511 96272 98592 101742 106392 107756 113776 117552 127348 129639 135564 135656 141856 144408 156442 161634 170664 172852 180752 186527 191022 192544 203484 212784 215512 220441 227552 234663 235104 254696 259278 271128 271312 288816 312884 323268 341328 345704 350207 361504 373054 382044 406968 425568 431024 440882 469326 475343 509392 518556 542256 542624 559581 561769 577632 625768 646536 661323 682656 691408 700414 746108 764088 813936 862048 881764 938652 950686 1018784 1037112 1050621 1084512 1119162 1123538 1251536 1293072 1322646 1339603 1382816 1400828 1426029 1492216 1528176 1627872 1685307 1763528 1877304 1901372 2074224 2101242 2238324 2247076 2424851 2503072 2586144 2645292 2679206 2801656 2852058 2984432 3056352 3370614 3527056 3754608 3802744 4018809 4148448 4202484 4476648 4494152 4849702 5290584 5358412 5603312 5704116 5968864 6179459 6741228 7054112 7274553 7509216 7605488 8037618 8404968 8953296 8988304 9699404 10581168 10716824 11206624 11408232 12358918 13482456 14549106 14735633 15210976 16075236 16809936 17414839 17906592 17976608 18538377 19398808 21162336 21433648 22816464 24717836 26964912 29098212 29471266 32150472 33619872 34829678 37076754 38797616 42867296 44206899 45632928 49435672 52244517 53929824 58196424 58942532 64300944 69659356 74153508 77595232 88413798 98871344 104489034 116392848 117885064 128601888 139318712 148307016 176827596 191563229 197742688 208978068 232785696 235770128 278637424 296614032 353655192 383126458 417956136 471540256 557274848 574689687 593228064 707310384 766252916 835912272 1149379374 1414620768 1532505832 1671824544 2298758748 3065011664 4597517496 6130023328 9195034992 18390069984
• Sum of all divisors σ(n): 59392327680
• Sum of proper divisors (its aliquot sum) s(n): 41002257696
• 18390069984 is an abundant number, because the sum of its proper divisors (41002257696) is greater than itself. Its abundance is 22612187712

Bases of 18390069984

• Binary: 10001001000001000100011001011100000₂
• Hexadecimal: 0x4482232E0
• Base-36: 8G4Z0TC

Squares and roots of 18390069984

• 18390069984 squared (18390069984²) is 338194674016417760256
• 18390069984 cubed (18390069984³) is 6219423723377988976088373755904
• The square root of 18390069984 is 135609.9921982153
• The cube root of 18390069984 is 2639.5372421215

Scales and comparisons

• 18,390,069,984 seconds is equal to 584 years, 38 weeks, 6 days, 46 minutes, 24 seconds.
• To count from 1 to 18,390,069,984 would take you about one thousand, one hundred sixty-nine 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 18390069984 cubic inches would be around 220 feet tall.

Recreational maths with 18390069984

• 18390069984 backwards is 48996009381
• The number of decimal digits it has is: 11
• The sum of 18390069984's digits is 57
• More coming soon!