18499957840

Names of 18499957840

• Cardinal: 18499957840 can be written as Eighteen billion, four hundred ninety-nine million, nine hundred fifty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.849995784 × 10¹⁰

Factors of 18499957840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 5073

Divisors of 18499957840

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 26 28 35 40 49 52 56 65 70 73 80 91 98 104 112 130 140 146 182 196 208 245 260 280 292 364 365 392 455 490 511 520 560 584 637 728 730 784 910 949 980 1022 1040 1168 1274 1456 1460 1820 1898 1960 2044 2548 2555 2920 3185 3577 3640 3796 3920 4088 4745 4973 5096 5110 5840 6370 6643 7154 7280 7592 8176 9490 9946 10192 10220 12740 13286 14308 15184 17885 18980 19892 20440 24865 25480 26572 28616 33215 34811 35770 37960 39784 40880 46501 49730 50960 53144 57232 64649 66430 69622 71540 75920 79568 93002 99460 106288 129298 132860 139244 143080 174055 186004 198920 232505 243677 258596 265720 278488 286160 323245 348110 363029 372008 397840 452543 465010 487354 517192 531440 556976 646490 696220 726058 744016 905086 930020 974708 1034384 1218385 1292980 1392440 1452116 1810172 1815145 1860040 1949416 2262715 2436770 2541203 2585960 2784880 2904232 3167801 3620344 3630290 3720080 3898832 4525430 4719377 4873540 5082406 5171920 5808464 6335602 7240688 7260580 9050860 9438754 9747080 10164812 12671204 12706015 14521160 15839005 17788421 18101720 18877508 19494160 20329624 23596885 25342408 25412030 29042320 31678010 33035639 35576842 36203440 37755016 40659248 47193770 50684816 50824060 63356020 66071278 71153684 75510032 88942105 94387540 101648120 126712040 132142556 142307368 165178195 177884210 188775080 203296240 231249473 253424080 264285112 284614736 330356390 355768420 377550160 462498946 528570224 660712780 711536840 924997892 1156247365 1321425560 1423073680 1849995784 2312494730 2642851120 3699991568 4624989460 9249978920 18499957840
• Sum of all divisors σ(n): 54632784528
• Sum of proper divisors (its aliquot sum) s(n): 36132826688
• 18499957840 is an abundant number, because the sum of its proper divisors (36132826688) is greater than itself. Its abundance is 17632868848

Bases of 18499957840

• Binary: 10001001110101011101111010001010000₂
• Hexadecimal: 0x44EAEF450
• Base-36: 8HYEATS

Squares and roots of 18499957840

• 18499957840 squared (18499957840²) is 342248440081777465600
• 18499957840 cubed (18499957840³) is 6331581712318649265862050304000
• The square root of 18499957840 is 136014.5501040237
• The cube root of 18499957840 is 2644.7842272611

Scales and comparisons

• 18,499,957,840 seconds is equal to 588 years, 12 weeks, 3 days, 21 hours, 10 minutes, 40 seconds.
• To count from 1 to 18,499,957,840 would take you about one thousand, one hundred seventy-six 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 18499957840 cubic inches would be around 220.4 feet tall.

Recreational maths with 18499957840

• 18499957840 backwards is 04875999481
• The number of decimal digits it has is: 11
• The sum of 18499957840's digits is 64
• More coming soon!