18086521680

Names of 18086521680

• Cardinal: 18086521680 can be written as Eighteen billion, eighty-six million, five hundred twenty-one thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.808652168 × 10¹⁰

Factors of 18086521680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 5140

Divisors of 18086521680

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 30 34 36 40 45 48 51 60 68 72 80 85 90 102 120 136 144 153 170 180 204 240 255 272 289 306 340 360 408 510 578 612 680 720 765 816 867 1020 1156 1224 1360 1445 1530 1734 2040 2312 2448 2601 2890 3060 3468 4080 4335 4624 4913 5113 5202 5780 6120 6936 8670 9826 10226 10404 11560 12240 13005 13872 14739 15339 17340 19652 20452 20808 23120 24565 25565 26010 29478 30678 34680 39304 40904 41616 44217 46017 49130 51130 52020 58956 61356 69360 73695 76695 78608 81808 86921 88434 92034 98260 102260 104040 117912 122712 147390 153390 173842 176868 184068 196520 204520 208080 221085 230085 235824 245424 260763 294780 306780 347684 353736 368136 393040 409040 434605 442170 460170 521526 589560 613560 695368 707472 736272 782289 869210 884340 920340 1043052 1179120 1227120 1303815 1390736 1477657 1564578 1738420 1768680 1840680 2086104 2607630 2955314 3129156 3476840 3537360 3681360 3911445 4172208 4432971 5215260 5910628 6258312 6953680 7388285 7822890 8865942 10430520 11821256 12516624 13298913 14776570 15645780 17731884 20861040 22164855 23642512 25120169 26597826 29553140 31291560 35463768 44329710 50240338 53195652 59106280 62583120 66494565 70927536 75360507 88659420 100480676 106391304 118212560 125600845 132989130 150721014 177318840 200961352 212782608 226081521 251201690 265978260 301442028 354637680 376802535 401922704 452163042 502403380 531956520 602884056 753605070 904326084 1004806760 1063913040 1130407605 1205768112 1507210140 1808652168 2009613520 2260815210 3014420280 3617304336 4521630420 6028840560 9043260840 18086521680
• Sum of all divisors σ(n): 64548703440
• Sum of proper divisors (its aliquot sum) s(n): 46462181760
• 18086521680 is an abundant number, because the sum of its proper divisors (46462181760) is greater than itself. Its abundance is 28375660080

Bases of 18086521680

• Binary: 10000110110000010100110101101010000₂
• Hexadecimal: 0x4360A6B50
• Base-36: 8B48XG0

Squares and roots of 18086521680

• 18086521680 squared (18086521680²) is 327122266481110022400
• 18086521680 cubed (18086521680³) is 5916503964721333730602885632000
• The square root of 18086521680 is 134486.1393601585
• The cube root of 18086521680 is 2624.9337757443

Scales and comparisons

• 18,086,521,680 seconds is equal to 575 years, 4 weeks, 6 days, 17 hours, 48 minutes.
• To count from 1 to 18,086,521,680 would take you about one thousand, one hundred fifty 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 18086521680 cubic inches would be around 218.7 feet tall.

Recreational maths with 18086521680

• 18086521680 backwards is 08612568081
• 18086521680 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18086521680's digits is 45
• More coming soon!