18987406716672

Names of 18987406716672

• Cardinal: 18987406716672 can be written as Eighteen trillion, nine hundred eighty-seven billion, four hundred six million, seven hundred sixteen thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.8987406716672 × 10¹³

Factors of 18987406716672

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 851

Divisors of 18987406716672

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 23 24 32 36 46 48 64 69 72 92 96 128 138 144 184 192 207 256 276 288 368 384 414 529 552 576 736 768 823 828 1058 1104 1152 1472 1587 1646 1656 2116 2208 2304 2469 2944 3174 3292 3312 4232 4416 4761 4938 5888 6348 6584 6624 7407 8464 8832 9522 9876 12167 12696 13168 13248 14814 16928 17664 18929 19044 19752 24334 25392 26336 26496 29628 33856 36501 37858 38088 39504 48668 50784 52672 52992 56787 59256 67712 73002 75716 76176 79008 97336 101568 105344 109503 113574 118512 135424 146004 151432 152352 158016 170361 194672 203136 210688 219006 227148 237024 292008 302864 304704 316032 340722 389344 406272 435367 438012 454296 474048 584016 605728 609408 632064 677329 681444 778688 870734 876024 908592 948096 1168032 1211456 1218816 1306101 1354658 1362888 1557376 1741468 1752048 1817184 1896192 2031987 2336064 2422912 2612202 2709316 2725776 3114752 3482936 3504096 3634368 3918303 4063974 4672128 4845824 5224404 5418632 5451552 6095961 6965872 7008192 7268736 7836606 8127948 9344256 10013441 10448808 10837264 10903104 12191922 13931744 14016384 14537472 15578567 15673212 16255896 20026882 20897616 21674528 21806208 24383844 27863488 28032768 30040323 31157134 31346424 32511792 40053764 41795232 43349056 43612416 46735701 48767688 55726976 60080646 62314268 62692848 65023584 80107528 83590464 86698112 90120969 93471402 97535376 111453952 120161292 124628536 125385696 130047168 140207103 160215056 167180928 173396224 180241938 186942804 195070752 240322584 249257072 250771392 260094336 280414206 320430112 334361856 358307041 360483876 373885608 390141504 480645168 498514144 501542784 520188672 560828412 640860224 716614082 720967752 747771216 780283008 961290336 997028288 1003085568 1074921123 1121656824 1281720448 1433228164 1441935504 1495542432 1560566016 1922580672 1994056576 2149842246 2243313648 2563440896 2866456328 2883871008 2991084864 3224763369 3845161344 3988113152 4299684492 4486627296 5732912656 5767742016 5982169728 6449526738 7690322688 8241061943 8599368984 8973254592 11465825312 11535484032 11964339456 12899053476 16482123886 17198737968 17946509184 22931650624 23070968064 24723185829 25798106952 32964247772 34397475936 35893018368 45863301248 49446371658 51596213904 65928495544 68794951872 74169557487 91726602496 98892743316 103192427808 131856991088 137589903744 148339114974 197785486632 206384855616 263713982176 275179807488 296678229948 395570973264 412769711232 527427964352 593356459896 791141946528 825539422464 1054855928704 1186712919792 1582283893056 2109711857408 2373425839584 3164567786112 4746851679168 6329135572224 9493703358336 18987406716672
• Sum of all divisors σ(n): 57303223220880
• Sum of proper divisors (its aliquot sum) s(n): 38315816504208
• 18987406716672 is an abundant number, because the sum of its proper divisors (38315816504208) is greater than itself. Its abundance is 19328409787536

Bases of 18987406716672

• Binary: 100010100010011011001101000011110111100000000₂
• Hexadecimal: 0x1144D9A1EF00
• Base-36: 6QAOZPVK0

Squares and roots of 18987406716672

• 18987406716672 squared (18987406716672²) is 360521613824320979282755584
• 18987406716672 cubed (18987406716672³) is 6845370511833341130663033936706113896448
• The square root of 18987406716672 is 4357454.1554297503
• The cube root of 18987406716672 is 26678.1197565161

Scales and comparisons

• 18,987,406,716,672 seconds is equal to 603,740 years, 41 weeks, 4 days, 19 hours, 31 minutes, 12 seconds.
• To count from 1 to 18,987,406,716,672 would take you about one million, five hundred nine thousand, three hundred fifty-two 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 18987406716672 cubic inches would be around 2223.2 feet tall.

Recreational maths with 18987406716672

• 18987406716672 backwards is 27661760478981
• 18987406716672 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18987406716672's digits is 72
• More coming soon!