18478085472

Names of 18478085472

• Cardinal: 18478085472 can be written as Eighteen billion, four hundred seventy-eight million, eighty-five thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.8478085472 × 10¹⁰

Factors of 18478085472

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 150

Divisors of 18478085472

• Number of divisors d(n): 528
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 27 28 32 33 36 42 44 48 54 56 63 66 72 77 81 84 88 96 99 108 112 126 127 132 144 154 162 168 176 189 198 216 224 231 243 252 254 264 288 297 308 324 336 352 378 381 396 432 462 486 504 508 528 567 594 616 648 672 693 729 756 762 792 864 889 891 924 972 1008 1016 1056 1134 1143 1188 1232 1296 1386 1397 1458 1512 1524 1584 1701 1778 1782 1848 1944 2016 2032 2079 2187 2268 2286 2376 2464 2592 2667 2673 2772 2794 2916 3024 3048 3168 3402 3429 3556 3564 3696 3888 4064 4158 4191 4374 4536 4572 4752 5103 5334 5346 5544 5588 5832 6048 6096 6237 6561 6804 6858 7112 7128 7392 7776 8001 8019 8316 8382 8748 9072 9144 9504 9779 10206 10287 10668 10692 11088 11176 11664 12192 12474 12573 13122 13608 13716 14224 14256 15309 16002 16038 16632 16764 17496 18144 18288 18711 19558 19683 20412 20574 21336 21384 22176 22352 23328 24003 24057 24948 25146 26244 27216 27432 28448 28512 29337 30618 30861 32004 32076 33264 33528 34992 36576 37422 37719 39116 39366 40824 41148 42672 42768 44704 45927 48006 48114 49896 50292 52488 54432 54864 56133 58674 59049 61236 61722 64008 64152 66528 67056 69984 72009 72171 74844 75438 78232 78732 81648 82296 85344 85536 88011 91854 92583 96012 96228 99792 100584 104976 109728 112266 113157 117348 118098 122472 123444 128016 128304 134112 137781 144018 144342 149688 150876 156464 157464 163296 164592 168399 176022 183708 185166 192024 192456 199584 201168 209952 216027 216513 224532 226314 234696 236196 244944 246888 256032 256608 264033 275562 277749 288036 288684 299376 301752 312928 314928 329184 336798 339471 352044 367416 370332 384048 384912 402336 413343 432054 433026 449064 452628 469392 472392 489888 493776 505197 528066 551124 555498 576072 577368 598752 603504 629856 648081 649539 673596 678942 704088 734832 740664 768096 769824 792099 826686 833247 864108 866052 898128 905256 938784 944784 987552 1010394 1018413 1056132 1102248 1110996 1152144 1154736 1207008 1296162 1299078 1347192 1357884 1408176 1469664 1481328 1515591 1584198 1653372 1666494 1728216 1732104 1796256 1810512 1889568 1944243 2020788 2036826 2112264 2204496 2221992 2304288 2309472 2376297 2499741 2592324 2598156 2694384 2715768 2816352 2962656 3031182 3055239 3168396 3306744 3332988 3456432 3464208 3621024 3888486 4041576 4073652 4224528 4408992 4443984 4546773 4752594 4999482 5184648 5196312 5388768 5431536 5832729 6062364 6110478 6336792 6613488 6665976 6912864 6928416 7128891 7499223 7776972 8083152 8147304 8449056 8887968 9093546 9165717 9505188 9998964 10369296 10392624 10863072 11665458 12124728 12220956 12673584 13226976 13331952 14257782 14998446 15553944 16166304 16294608 17498187 18187092 18331434 19010376 19997928 20738592 20785248 21386673 23330916 24249456 24441912 25347168 26663904 27497151 28515564 29996892 31107888 32589216 34996374 36374184 36662868 38020752 39995856 42773346 46661832 48498912 48883824 52494561 54994302 57031128 59993784 62215776 64160019 69992748 72748368 73325736 76041504 79991712 82491453 85546692 93323664 97767648 104989122 109988604 114062256 119987568 128320038 139985496 145496736 146651472 164982906 171093384 186647328 192480057 209978244 219977208 228124512 239975136 256640076 279970992 293302944 329965812 342186768 384960114 419956488 439954416 513280152 559941984 577440171 659931624 684373536 769920228 839912976 879908832 1026560304 1154880342 1319863248 1539840456 1679825952 2053120608 2309760684 2639726496 3079680912 4619521368 6159361824 9239042736 18478085472
• Sum of all divisors σ(n): 68568256512
• Sum of proper divisors (its aliquot sum) s(n): 50090171040
• 18478085472 is an abundant number, because the sum of its proper divisors (50090171040) is greater than itself. Its abundance is 31612085568

Bases of 18478085472

• Binary: 10001001101011000010011010101100000₂
• Hexadecimal: 0x44D613560
• Base-36: 8HLDI00

Squares and roots of 18478085472

• 18478085472 squared (18478085472²) is 341439642710537462784
• 18478085472 cubed (18478085472³) is 6309150901534452992380771074048
• The square root of 18478085472 is 135934.1218090587
• The cube root of 18478085472 is 2643.7415130555

Scales and comparisons

• 18,478,085,472 seconds is equal to 587 years, 28 weeks, 2 days, 17 hours, 31 minutes, 12 seconds.
• To count from 1 to 18,478,085,472 would take you about one thousand, one hundred seventy-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 18478085472 cubic inches would be around 220.3 feet tall.

Recreational maths with 18478085472

• 18478085472 backwards is 27458087481
• 18478085472 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18478085472's digits is 54
• More coming soon!