18729700470

Names of 18729700470

• Cardinal: 18729700470 can be written as Eighteen billion, seven hundred twenty-nine million, seven hundred thousand, four hundred seventy.

Scientific notation

• Scientific notation: 1.872970047 × 10¹⁰

Factors of 18729700470

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2327

Divisors of 18729700470

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 61 65 78 81 90 117 122 130 135 162 169 183 195 234 270 305 338 351 366 390 405 507 549 585 610 702 793 810 845 915 1014 1053 1098 1170 1521 1586 1647 1690 1755 1830 2106 2243 2379 2535 2745 3042 3294 3510 3965 4486 4563 4758 4941 5070 5265 5490 6729 7137 7605 7930 8235 9126 9882 10309 10530 11215 11895 13458 13689 14274 15210 16470 20187 20618 21411 22430 22815 23790 24705 27378 29159 30927 33645 35685 40374 42822 45630 49410 51545 58318 60561 61854 64233 67290 68445 71370 87477 92781 100935 103090 107055 121122 128466 136823 136890 145795 154635 174954 181683 185562 201870 214110 262431 273646 278343 291590 302805 309270 321165 363366 379067 410469 437385 463905 524862 556686 605610 642330 684115 758134 787293 820938 835029 874770 908415 927810 1137201 1231407 1312155 1368230 1391715 1574586 1670058 1778699 1816830 1895335 2052345 2274402 2361879 2462814 2624310 2783430 3411603 3557398 3694221 3790670 3936465 4104690 4175145 4723758 5336097 5686005 6157035 6823206 7388442 7872930 8350290 8893495 10234809 10672194 11082663 11372010 11809395 12314070 16008291 17058015 17786990 18471105 20469618 22165326 23123087 23618790 26680485 30704427 32016582 34116030 36942210 46246174 48024873 51174045 53360970 55413315 61408854 69369261 80041455 96049746 102348090 110826630 115615435 138738522 144074619 153522135 160082910 208107783 231230870 240124365 288149238 307044270 346846305 416215566 480248730 624323349 693692610 720373095 1040538915 1248646698 1440746190 1872970047 2081077830 3121616745 3745940094 6243233490 9364850235 18729700470
• Sum of all divisors σ(n): 55452803472
• Sum of proper divisors (its aliquot sum) s(n): 36723103002
• 18729700470 is an abundant number, because the sum of its proper divisors (36723103002) is greater than itself. Its abundance is 17993402532

Bases of 18729700470

• Binary: 10001011100011000001000110001110110₂
• Hexadecimal: 0x45C608C76
• Base-36: 8LR6HDI

Squares and roots of 18729700470

• 18729700470 squared (18729700470²) is 350801679695918220900
• 18729700470 cubed (18729700470³) is 6570410385077428959072293823000
• The square root of 18729700470 is 136856.4958999023
• The cube root of 18729700470 is 2655.6873447825

Scales and comparisons

• 18,729,700,470 seconds is equal to 595 years, 28 weeks, 2 days, 22 hours, 34 minutes, 30 seconds.
• To count from 1 to 18,729,700,470 would take you about one thousand, one hundred ninety-one 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 18729700470 cubic inches would be around 221.3 feet tall.

Recreational maths with 18729700470

• 18729700470 backwards is 07400792781
• 18729700470 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18729700470's digits is 45
• More coming soon!