18238739464

Names of 18238739464

• Cardinal: 18238739464 can be written as Eighteen billion, two hundred thirty-eight million, seven hundred thirty-nine thousand, four hundred sixty-four.

Scientific notation

• Scientific notation: 1.8238739464 × 10¹⁰

Factors of 18238739464

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 140

Divisors of 18238739464

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 8 11 19 22 38 41 44 67 76 82 88 121 134 152 164 209 242 268 328 361 418 451 484 536 722 737 779 836 902 968 1273 1444 1474 1558 1672 1804 2299 2546 2747 2888 2948 3116 3608 3971 4598 4961 5092 5494 5896 6232 6859 7942 8107 8569 9196 9922 10184 10988 13718 14003 14801 15884 16214 17138 18392 19844 21976 24187 27436 28006 29602 30217 31768 32428 34276 39688 43681 48374 52193 54872 56012 59204 60434 64856 68552 75449 87362 94259 96748 104386 112024 118408 120868 150898 154033 162811 174724 188518 193496 208772 241736 266057 281219 301796 308066 325622 332387 349448 377036 417544 459553 532114 562438 574123 603592 616132 651244 664774 754072 829939 919106 991667 1064228 1124876 1148246 1232264 1302488 1329548 1659878 1790921 1838212 1983334 2128456 2249752 2296492 2659096 2926627 3093409 3319756 3581842 3676424 3966668 4592984 5055083 5853254 6186818 6315353 6639512 7163684 7933336 10110166 10908337 11706508 12373636 12630706 14327368 18841673 20220332 21816674 23413016 24747272 25261412 34027499 37683346 40440664 43633348 50522824 55605913 68054998 75366692 87266696 111211826 119991707 136109996 150733384 207258403 222423652 239983414 272219992 414516806 444847304 479966828 829033612 959933656 1658067224 2279842433 4559684866 9119369732 18238739464
• Sum of all divisors σ(n): 41251492800
• Sum of proper divisors (its aliquot sum) s(n): 23012753336
• 18238739464 is an abundant number, because the sum of its proper divisors (23012753336) is greater than itself. Its abundance is 4774013872

Bases of 18238739464

• Binary: 10000111111000111010001010000001000₂
• Hexadecimal: 0x43F1D1408
• Base-36: 8DMVHFS

Squares and roots of 18238739464

• 18238739464 squared (18238739464²) is 332651617235671007296
• 18238739464 cubed (18238739464³) is 6067146179039655389290187129344
• The square root of 18238739464 is 135050.8773166617
• The cube root of 18238739464 is 2632.2771058749

Scales and comparisons

• 18,238,739,464 seconds is equal to 579 years, 48 weeks, 4 days, 12 hours, 31 minutes, 4 seconds.
• To count from 1 to 18,238,739,464 would take you about one thousand, one hundred fifty-nine 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 18238739464 cubic inches would be around 219.4 feet tall.

Recreational maths with 18238739464

• 18238739464 backwards is 46493783281
• The number of decimal digits it has is: 11
• The sum of 18238739464's digits is 55
• More coming soon!