18997935840

Names of 18997935840

• Cardinal: 18997935840 can be written as Eighteen billion, nine hundred ninety-seven million, nine hundred thirty-five thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.899793584 × 10¹⁰

Factors of 18997935840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1796

Divisors of 18997935840

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 19 20 24 26 30 31 32 36 38 39 40 45 48 52 57 60 62 65 72 76 78 80 90 93 95 96 104 114 117 120 124 130 144 152 155 156 160 171 180 186 190 195 208 228 234 240 247 248 260 279 285 288 304 310 312 342 360 372 380 390 403 416 456 465 468 480 494 496 520 558 570 585 589 608 620 624 684 720 741 744 760 780 806 855 912 930 936 988 992 1040 1116 1140 1170 1178 1209 1235 1240 1248 1368 1395 1440 1482 1488 1520 1560 1612 1710 1723 1767 1824 1860 1872 1976 2015 2080 2223 2232 2280 2340 2356 2418 2470 2480 2736 2790 2945 2964 2976 3040 3120 3224 3420 3446 3534 3627 3705 3720 3744 3952 4030 4446 4464 4560 4680 4712 4836 4940 4960 5169 5301 5472 5580 5890 5928 6045 6240 6448 6840 6892 7068 7254 7410 7440 7657 7904 8060 8615 8835 8892 8928 9120 9360 9424 9672 9880 10338 10602 11115 11160 11780 11856 12090 12896 13680 13784 14136 14508 14820 14880 15314 15507 16120 17230 17670 17784 18135 18720 18848 19344 19760 20676 21204 22230 22320 22399 22971 23560 23712 24180 25845 26505 27360 27568 28272 29016 29640 30628 31014 32240 32737 34460 35340 35568 36270 38285 38688 39520 41352 42408 44460 44640 44798 45942 47120 48360 51690 53010 53413 55136 56544 58032 59280 61256 62028 64480 65474 67197 68913 68920 70680 71136 72540 76570 77535 82704 84816 88920 89596 91884 94240 96720 98211 103380 106020 106826 111995 114855 116064 118560 122512 124056 130948 134394 137826 137840 141360 145080 153140 155070 160239 163685 165408 169632 177840 179192 183768 193440 196422 201591 206760 212040 213652 223990 229710 245024 248112 261896 267065 268788 275652 275680 282720 290160 294633 306280 310140 320478 327370 335985 344565 355680 358384 367536 392844 403182 413520 424080 425581 427304 447980 459420 480717 491055 496224 523792 534130 537576 551304 580320 589266 612560 620280 640956 654740 671970 689130 694369 716768 735072 785688 801195 806364 827040 848160 851162 854608 895960 918840 961434 982110 1007955 1014847 1047584 1068260 1075152 1102608 1178532 1225120 1240560 1276743 1281912 1309480 1343940 1378260 1388738 1473165 1571376 1602390 1612728 1702324 1709216 1791920 1837680 1922868 1964220 2015910 2029694 2083107 2127905 2136520 2150304 2205216 2357064 2403585 2481120 2553486 2563824 2618960 2687880 2756520 2777476 2946330 3044541 3142752 3204780 3225456 3404648 3471845 3583840 3675360 3830229 3845736 3928440 4031820 4059388 4166214 4255810 4273040 4714128 4807170 5074235 5106972 5127648 5237920 5375760 5513040 5554952 5892660 6089082 6249321 6383715 6409560 6450912 6809296 6943690 7660458 7691472 7856880 8063640 8118776 8332428 8511620 8546080 9133623 9428256 9614340 10148470 10213944 10415535 10751520 11026080 11109904 11785320 12178164 12498642 12767430 12819120 13193011 13618592 13887380 15222705 15320916 15382944 15713760 16127280 16237552 16664856 17023240 18267246 19151145 19228680 20296940 20427888 20831070 22219808 23570640 24356328 24997284 25534860 25638240 26386022 27774760 30445410 30641832 31246605 32254560 32475104 33329712 34046480 36534492 38302290 38457360 39579033 40593880 40855776 41662140 45668115 47141280 48712656 49994568 51069720 52772044 55549520 60890820 61283664 62493210 65965055 66659424 68092960 73068984 76604580 76914720 79158066 81187760 83324280 91336230 97425312 99989136 102139440 105544088 111099040 118737099 121781640 122567328 124986420 131930110 146137968 153209160 158316132 162375520 166648560 182672460 197895165 199978272 204278880 211088176 237474198 243563280 249972840 263860220 292275936 306418320 316632264 333297120 365344920 395790330 422176352 474948396 487126560 499945680 527720440 593685495 612836640 633264528 730689840 791580660 949896792 999891360 1055440880 1187370990 1266529056 1461379680 1583161320 1899793584 2110881760 2374741980 3166322640 3799587168 4749483960 6332645280 9498967920 18997935840
• Sum of all divisors σ(n): 75906754560
• Sum of proper divisors (its aliquot sum) s(n): 56908818720
• 18997935840 is an abundant number, because the sum of its proper divisors (56908818720) is greater than itself. Its abundance is 37910882880

Bases of 18997935840

• Binary: 10001101100010111010111111011100000₂
• Hexadecimal: 0x46C5D7EE0
• Base-36: 8Q6VP40

Squares and roots of 18997935840

• 18997935840 squared (18997935840²) is 360921566180756505600
• 18997935840 cubed (18997935840³) is 6856764757574325936051400704000
• The square root of 18997935840 is 137832.9998222487
• The cube root of 18997935840 is 2668.3050135041

Scales and comparisons

• 18,997,935,840 seconds is equal to 604 years, 3 weeks, 6 days, 12 hours, 24 minutes.
• To count from 1 to 18,997,935,840 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 18997935840 cubic inches would be around 222.4 feet tall.

Recreational maths with 18997935840

• 18997935840 backwards is 04853979981
• The number of decimal digits it has is: 11
• The sum of 18997935840's digits is 63
• More coming soon!