18997066400

Names of 18997066400

• Cardinal: 18997066400 can be written as Eighteen billion, nine hundred ninety-seven million, sixty-six thousand, four hundred.

Scientific notation

• Scientific notation: 1.89970664 × 10¹⁰

Factors of 18997066400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 923

Divisors of 18997066400

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 8 10 13 16 19 20 25 26 32 38 40 50 52 65 76 80 95 100 104 127 130 152 160 190 200 208 247 254 260 304 325 380 400 416 475 494 508 520 608 635 650 757 760 800 950 988 1016 1040 1235 1270 1300 1514 1520 1651 1900 1976 2032 2080 2413 2470 2540 2600 3028 3040 3175 3302 3785 3800 3952 4064 4826 4940 5080 5200 6056 6175 6350 6604 7570 7600 7904 8255 9652 9841 9880 10160 10400 12065 12112 12350 12700 13208 14383 15140 15200 16510 18925 19304 19682 19760 20320 24130 24224 24700 25400 26416 28766 30280 31369 33020 37850 38608 39364 39520 41275 48260 49205 49400 50800 52832 57532 60325 60560 62738 66040 71915 75700 77216 78728 82550 96139 96520 98410 98800 101600 115064 120650 121120 125476 132080 143830 151400 156845 157456 165100 186979 192278 193040 196820 197600 230128 241300 246025 250952 264160 287660 302800 313690 314912 330200 359575 373958 384556 386080 393640 460256 480695 482600 492050 501904 575320 605600 627380 660400 719150 747916 769112 784225 787280 934895 961390 965200 984100 1003808 1150640 1249807 1254760 1320800 1438300 1495832 1538224 1568450 1574560 1826641 1869790 1922780 1930400 1968200 2301280 2403475 2499614 2509520 2876600 2991664 3076448 3136900 3653282 3739580 3845560 3936400 4674475 4806950 4999228 5019040 5753200 5983328 6249035 6273800 7306564 7479160 7691120 7872800 9133205 9348950 9613900 9998456 11506400 12498070 12547600 14613128 14958320 15382240 18266410 18697900 19227800 19996912 23746333 24996140 25095200 29226256 29916640 31245175 36532820 37395800 38455600 39993824 45666025 47492666 49992280 58452512 62490350 73065640 74791600 76911200 91332050 94985332 99984560 118731665 124980700 146131280 149583200 182664100 189970664 199969120 237463330 249961400 292262560 365328200 379941328 474926660 499922800 593658325 730656400 759882656 949853320 999845600 1187316650 1461312800 1899706640 2374633300 3799413280 4749266600 9498533200 18997066400
• Sum of all divisors σ(n): 53056604160
• Sum of proper divisors (its aliquot sum) s(n): 34059537760
• 18997066400 is an abundant number, because the sum of its proper divisors (34059537760) is greater than itself. Its abundance is 15062471360

Bases of 18997066400

• Binary: 10001101100010100000011101010100000₂
• Hexadecimal: 0x46C503AA0
• Base-36: 8Q6D28W

Squares and roots of 18997066400

• 18997066400 squared (18997066400²) is 360888531806008960000
• 18997066400 cubed (18997066400³) is 6855823401717264132114944000000
• The square root of 18997066400 is 137829.8458244803
• The cube root of 18997066400 is 2668.2643079151

Scales and comparisons

• 18,997,066,400 seconds is equal to 604 years, 2 weeks, 3 days, 10 hours, 53 minutes, 20 seconds.
• To count from 1 to 18,997,066,400 would take you about one thousand, two hundred eight 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 18997066400 cubic inches would be around 222.4 feet tall.

Recreational maths with 18997066400

• 18997066400 backwards is 00466079981
• 18997066400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18997066400's digits is 50
• More coming soon!