13405605720

Names of 13405605720

• Cardinal: 13405605720 can be written as Thirteen billion, four hundred five million, six hundred five thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.340560572 × 10¹⁰

Factors of 13405605720

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 642

Divisors of 13405605720

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 181 195 197 241 260 312 362 390 394 482 520 543 591 723 724 780 788 905 964 985 1086 1182 1205 1446 1448 1560 1576 1810 1928 1970 2172 2353 2364 2410 2561 2715 2892 2955 3133 3615 3620 3940 4344 4706 4728 4820 5122 5430 5784 5910 6266 7059 7230 7240 7683 7880 9399 9412 9640 10244 10860 11765 11820 12532 12805 14118 14460 15366 15665 18798 18824 20488 21720 23530 23640 25064 25610 28236 28920 30732 31330 35295 35657 37596 38415 43621 46995 47060 47477 51220 56472 61464 62660 70590 71314 75192 76830 87242 93990 94120 94954 102440 106971 125320 130863 141180 142431 142628 153660 174484 178285 187980 189908 213942 218105 237385 261726 282360 284862 285256 307320 348968 356570 375960 379816 427884 436210 463541 474770 523452 534855 567073 569724 617201 654315 712155 713140 855768 872420 927082 949540 1046904 1069710 1134146 1139448 1234402 1308630 1390623 1424310 1426280 1701219 1744840 1851603 1854164 1899080 2139420 2268292 2317705 2468804 2617260 2781246 2835365 2848620 3086005 3402438 3703206 3708328 4278840 4536584 4635410 4937608 5234520 5562492 5670730 5697240 6172010 6804876 6953115 7406412 8506095 8593337 9258015 9270820 11124984 11341460 12344020 13609752 13906230 14812824 17012190 17186674 18516030 18541640 22682920 24688040 25780011 27812460 34024380 34373348 37032060 42966685 51560022 55624920 68048760 68746696 74064120 85933370 103120044 111713381 128900055 171866740 206240088 223426762 257800110 335140143 343733480 446853524 515600220 558566905 670280286 893707048 1031200440 1117133810 1340560572 1675700715 2234267620 2681121144 3351401430 4468535240 6702802860 13405605720
• Sum of all divisors σ(n): 43952388480
• Sum of proper divisors (its aliquot sum) s(n): 30546782760
• 13405605720 is an abundant number, because the sum of its proper divisors (30546782760) is greater than itself. Its abundance is 17141177040

Bases of 13405605720

• Binary: 1100011111000010010100111101011000₂
• Hexadecimal: 0x31F094F58
• Base-36: 65PCNKO

Squares and roots of 13405605720

• 13405605720 squared (13405605720²) is 179710264720096718400
• 13405605720 cubed (13405605720³) is 2409124952674442767136269248000
• The square root of 13405605720 is 115782.5795186823
• The cube root of 13405605720 is 2375.5389045607

Scales and comparisons

• 13,405,605,720 seconds is equal to 426 years, 13 weeks, 2 days, 11 hours, 22 minutes.
• To count from 1 to 13,405,605,720 would take you about eight hundred fifty-two 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 13405605720 cubic inches would be around 198 feet tall.

Recreational maths with 13405605720

• 13405605720 backwards is 02750650431
• The number of decimal digits it has is: 11
• The sum of 13405605720's digits is 33
• More coming soon!