18015898992

Names of 18015898992

• Cardinal: 18015898992 can be written as Eighteen billion, fifteen million, eight hundred ninety-eight thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 1.8015898992 × 10¹⁰

Factors of 18015898992

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 368

Divisors of 18015898992

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 31 39 42 48 49 52 56 62 78 83 84 91 93 98 104 112 124 147 156 166 168 182 186 196 208 217 229 248 249 273 294 312 332 336 364 372 392 403 434 458 496 498 546 581 588 624 637 651 664 687 728 744 784 806 868 916 996 1079 1092 1162 1176 1209 1274 1302 1328 1374 1456 1488 1519 1603 1612 1736 1743 1832 1911 1992 2158 2184 2324 2352 2418 2548 2573 2604 2748 2821 2977 3038 3206 3224 3237 3472 3486 3664 3822 3984 4067 4316 4368 4557 4648 4809 4836 5096 5146 5208 5496 5642 5954 6076 6412 6448 6474 6972 7099 7553 7644 7719 8134 8463 8632 8931 9114 9296 9618 9672 10192 10292 10416 10992 11221 11284 11908 12152 12201 12824 12948 13944 14198 15106 15288 15438 16268 16926 17264 17862 18011 18228 19007 19236 19344 19747 20584 20839 21297 22442 22568 22659 23816 24304 24402 25648 25896 27888 28396 30212 30576 30876 32536 33449 33663 33852 35724 36022 36456 38014 38472 39494 41168 41678 42594 44884 45136 45318 47632 48804 49693 51792 52871 54033 56792 57021 59241 60424 61752 62517 65072 66898 67326 67704 71448 72044 72912 76028 76944 78988 83356 85188 89768 90636 92287 97608 99386 100347 105742 108066 113584 114042 118482 120848 123504 125034 126077 133049 133796 134652 135408 142896 144088 145873 149079 152056 157976 158613 166712 170376 179536 181272 184574 195216 198772 200694 211484 216132 228084 234143 236964 247091 250068 252154 266098 267592 269304 276861 288176 291746 298158 304112 315952 317226 333424 340752 347851 362544 369148 378231 397544 399147 401388 422968 432264 437619 456168 468286 473928 494182 500136 504308 532196 535184 538608 553722 583492 589217 596316 634452 646009 695702 702429 738296 741273 756462 795088 798294 802776 845936 864528 875238 912336 931343 936572 947856 988364 1000272 1008616 1043553 1064392 1107444 1166984 1178434 1192632 1268904 1292018 1391404 1404858 1476592 1482546 1512924 1596588 1605552 1639001 1729637 1750476 1767651 1862686 1873144 1938027 1976728 2017232 2087106 2128784 2214888 2333968 2356868 2385264 2537808 2584036 2782808 2794029 2809716 2965092 3025848 3193176 3278002 3459274 3500952 3535302 3725372 3746288 3876054 3953456 4124519 4174212 4429776 4522063 4713736 4917003 5168072 5188911 5565616 5588058 5619432 5930184 6051696 6386352 6556004 6918548 7001904 7070604 7450744 7659821 7752108 8249038 8348424 9044126 9427472 9834006 10336144 10377822 11176116 11238864 11860368 12107459 12373557 13112008 13566189 13837096 14141208 14901488 15319642 15504216 16498076 16696848 18088252 19668012 20755644 22352232 22979463 24214918 24747114 26224016 27132378 27674192 28282416 28871633 30639284 31008432 32996152 36176504 36322377 39336024 41511288 44704464 45958926 48429836 49494228 53618747 54264756 57743266 61278568 65992304 72353008 72644754 78672048 83022576 86614899 91917852 96859672 98988456 107237494 108529512 115486532 122557136 145289508 160856241 173229798 183835704 193719344 197976912 214474988 217059024 230973064 290579016 321712482 346459596 367671408 375331229 428949976 461946128 581158032 643424964 692919192 750662458 857899952 1125993687 1286849928 1385838384 1501324916 2251987374 2573699856 3002649832 4503974748 6005299664 9007949496 18015898992
• Sum of all divisors σ(n): 61176084480
• Sum of proper divisors (its aliquot sum) s(n): 43160185488
• 18015898992 is an abundant number, because the sum of its proper divisors (43160185488) is greater than itself. Its abundance is 25144286496

Bases of 18015898992

• Binary: 10000110001110101001100110101110000₂
• Hexadecimal: 0x431D4CD70
• Base-36: 89Y78MO

Squares and roots of 18015898992

• 18015898992 squared (18015898992²) is 324572616489946616064
• 18015898992 cubed (18015898992³) is 5847467474252031818481228607488
• The square root of 18015898992 is 134223.3176165751
• The cube root of 18015898992 is 2621.5127809607

Scales and comparisons

• 18,015,898,992 seconds is equal to 572 years, 44 weeks, 1 day, 8 hours, 23 minutes, 12 seconds.
• To count from 1 to 18,015,898,992 would take you about one thousand, one hundred forty-five 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 18015898992 cubic inches would be around 218.5 feet tall.

Recreational maths with 18015898992

• 18015898992 backwards is 29989851081
• The number of decimal digits it has is: 11
• The sum of 18015898992's digits is 60
• More coming soon!