18091989228672

Names of 18091989228672

• Cardinal: 18091989228672 can be written as Eighteen trillion, ninety-one billion, nine hundred eighty-nine million, two hundred twenty-eight thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.8091989228672 × 10¹³

Factors of 18091989228672

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 1171

Divisors of 18091989228672

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 37 48 54 64 72 74 81 96 108 111 128 144 148 162 192 216 222 288 296 324 333 384 432 444 576 592 648 666 864 888 999 1129 1152 1184 1296 1332 1369 1728 1776 1998 2258 2368 2592 2664 2738 2997 3387 3456 3552 3996 4107 4516 4736 5184 5328 5476 5994 6774 7104 7992 8214 9032 10161 10368 10656 10952 11988 12321 13548 14208 15984 16428 18064 20322 21312 21904 23976 24642 27096 30483 31968 32856 36128 36963 40644 41773 42624 43808 47952 49284 54192 60966 63936 65712 72256 73926 81288 83546 87616 91449 95904 98568 108384 110889 121932 125319 127872 131424 144512 147852 162576 167092 175232 182898 191808 197136 216768 221778 243864 250638 262848 295704 325152 334184 365796 375957 383616 394272 433536 443556 487728 501276 525696 591408 650304 668368 731592 751914 788544 887112 975456 1002552 1127871 1182816 1274641 1300608 1336736 1463184 1503828 1545601 1577088 1774224 1950912 2005104 2255742 2365632 2549282 2673472 2926368 3007656 3091202 3383613 3548448 3823923 3901824 4010208 4511484 4636803 4731264 5098564 5346944 5852736 6015312 6182404 6767226 7096896 7647846 8020416 9022968 9273606 10197128 11471769 11705472 12030624 12364808 13534452 13910409 14193792 15295692 16040832 18045936 18547212 20394256 22943538 24061248 24729616 27068904 27820818 30591384 34415307 36091872 37094424 40788512 41731227 45887076 47161717 48122496 49459232 54137808 55641636 61182768 68830614 72183744 74188848 81577024 83462454 91774152 94323434 98918464 103245921 108275616 111283272 122365536 125193681 137661228 141485151 144367488 148377696 163154048 166924908 183548304 188646868 197836928 206491842 216551232 222566544 244731072 250387362 275322456 282970302 296755392 333849816 367096608 377293736 412983684 424455453 433102464 445133088 489462144 500774724 550644912 565940604 593510784 667699632 734193216 754587472 825967368 848910906 890266176 1001549448 1101289824 1131881208 1273366359 1335399264 1468386432 1509174944 1651934736 1697821812 1744983529 1780532352 2003098896 2202579648 2263762416 2546732718 2670798528 3018349888 3303869472 3395643624 3489967058 3820099077 4006197792 4405159296 4527524832 5093465436 5234950587 5341597056 6036699776 6607738944 6791287248 6979934116 7640198154 8012395584 9055049664 10186930872 10469901174 13215477888 13582574496 13959868232 15280396308 15704851761 16024791168 18110099328 20373861744 20939802348 27165148992 27919736464 30560792616 31409703522 40747723488 41879604696 47114555283 54330297984 55839472928 61121585232 62819407044 81495446976 83759209392 94229110566 111678945856 122243170464 125638814088 141343665849 162990893952 167518418784 188458221132 223357891712 244486340928 251277628176 282687331698 335036837568 376916442264 488972681856 502555256352 565374663396 670073675136 753832884528 1005110512704 1130749326792 1507665769056 2010221025408 2261498653584 3015331538112 4522997307168 6030663076224 9045994614336 18091989228672
• Sum of all divisors σ(n): 55385027286435
• Sum of proper divisors (its aliquot sum) s(n): 37293038057763
• 18091989228672 is an abundant number, because the sum of its proper divisors (37293038057763) is greater than itself. Its abundance is 19201048829091

Bases of 18091989228672

• Binary: 100000111010001011110100101110101110010000000₂
• Hexadecimal: 0x10745E975C80
• Base-36: 6EVCF9K00

Squares and roots of 18091989228672

• 18091989228672 squared (18091989228672²) is 327320074250383669506883584
• 18091989228672 cubed (18091989228672³) is 5921871257666060613481907699486658920448
• The square root of 18091989228672 is 4253467.9061528135
• The cube root of 18091989228672 is 26251.9825459173

Scales and comparisons

• 18,091,989,228,672 seconds is equal to 575,269 years, 15 weeks, 2 days, 11 hours, 31 minutes, 12 seconds.
• To count from 1 to 18,091,989,228,672 would take you about one million, four hundred thirty-eight thousand, one hundred seventy-three 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 18091989228672 cubic inches would be around 2187.7 feet tall.

Recreational maths with 18091989228672

• 18091989228672 backwards is 27682298919081
• 18091989228672 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18091989228672's digits is 72
• More coming soon!