20155184640

Names of 20155184640

• Cardinal: 20155184640 can be written as Twenty billion, one hundred fifty-five million, one hundred eighty-four thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.015518464 × 10¹⁰

Factors of 20155184640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 118

Divisors of 20155184640

• Number of divisors d(n): 600
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 37 40 45 48 54 60 64 71 72 74 80 81 90 96 108 111 120 128 135 142 144 148 160 162 180 185 192 213 216 222 240 256 270 284 288 296 320 324 333 355 360 370 384 405 426 432 444 480 512 540 555 568 576 592 639 640 648 666 710 720 740 768 810 852 864 888 960 999 1065 1080 1110 1136 1152 1184 1278 1280 1296 1332 1369 1420 1440 1480 1536 1620 1665 1704 1728 1776 1917 1920 1998 2130 2160 2220 2272 2304 2368 2556 2560 2592 2627 2664 2738 2840 2880 2960 2997 3195 3240 3330 3408 3456 3552 3834 3840 3996 4107 4260 4320 4440 4544 4608 4736 4995 5112 5184 5254 5328 5476 5680 5751 5760 5920 5994 6390 6480 6660 6816 6845 6912 7104 7668 7680 7881 7992 8214 8520 8640 8880 9088 9472 9585 9990 10224 10368 10508 10656 10952 11360 11502 11520 11840 11988 12321 12780 12960 13135 13320 13632 13690 13824 14208 14985 15336 15762 15984 16428 17040 17280 17760 18176 18944 19170 19980 20448 20535 20736 21016 21312 21904 22720 23004 23040 23643 23680 23976 24642 25560 25920 26270 26640 27264 27380 28416 28755 29970 30672 31524 31968 32856 34080 34560 35520 36352 36963 38340 39405 39960 40896 41070 41472 42032 42624 43808 45440 46008 47286 47360 47952 49284 51120 51840 52540 53280 54528 54760 56832 57510 59940 61344 61605 63048 63936 65712 68160 69120 70929 71040 73926 76680 78810 79920 81792 82140 84064 85248 87616 90880 92016 94572 94720 95904 97199 98568 102240 103680 105080 106560 109056 109520 110889 115020 118215 119880 122688 123210 126096 127872 131424 136320 141858 142080 147852 153360 157620 159840 163584 164280 168128 170496 175232 181760 184032 184815 189144 191808 194398 197136 204480 207360 210160 212787 213120 219040 221778 230040 236430 239760 245376 246420 252192 255744 262848 272640 283716 284160 291597 295704 306720 315240 319680 327168 328560 336256 350464 354645 368064 369630 378288 383616 388796 394272 408960 420320 425574 426240 438080 443556 460080 472860 479520 485995 490752 492840 504384 511488 525696 545280 554445 567432 583194 591408 613440 630480 639360 657120 672512 700928 709290 736128 739260 756576 767232 777592 788544 817920 840640 851148 852480 874791 876160 887112 920160 945720 959040 971990 981504 985680 1008768 1051392 1063935 1108890 1134864 1166388 1182816 1226880 1260960 1278720 1314240 1345024 1418580 1457985 1472256 1478520 1513152 1534464 1555184 1577088 1635840 1681280 1702296 1749582 1752320 1774224 1840320 1891440 1918080 1943980 1971360 2017536 2102784 2127870 2217780 2269728 2332776 2365632 2453760 2521920 2557440 2624373 2628480 2837160 2915970 2944512 2957040 3026304 3110368 3154176 3362560 3404592 3499164 3504640 3548448 3680640 3782880 3836160 3887960 3942720 4035072 4255740 4373955 4435560 4539456 4665552 4731264 4907520 5043840 5248746 5256960 5674320 5831940 5914080 6052608 6220736 6308352 6725120 6809184 6998328 7096896 7361280 7565760 7672320 7775920 7873119 7885440 8511480 8747910 8871120 9078912 9331104 9462528 10087680 10497492 10513920 11348640 11663880 11828160 12105216 12441472 13121865 13618368 13996656 14193792 14722560 15131520 15551840 15746238 15770880 17022960 17495820 17742240 18157824 18662208 18925056 20175360 20994984 22697280 23327760 23656320 24882944 26243730 27236736 27993312 28387584 30263040 31103680 31492476 31541760 34045920 34991640 35484480 36315648 37324416 39365595 41989968 45394560 46655520 47312640 49765888 52487460 54473472 55986624 56775168 60526080 62207360 62984952 68091840 69983280 70968960 74648832 78731190 83979936 90789120 93311040 94625280 104974920 108946944 111973248 124414720 125969904 136183680 139966560 141937920 149297664 157462380 167959872 181578240 186622080 209949840 223946496 248829440 251939808 272367360 279933120 283875840 314924760 335919744 373244160 419899680 447892992 503879616 544734720 559866240 629849520 671839488 746488320 839799360 1007759232 1119732480 1259699040 1343678976 1679598720 2015518464 2239464960 2519398080 3359197440 4031036928 5038796160 6718394880 10077592320 20155184640
• Sum of all divisors σ(n): 75238278192
• Sum of proper divisors (its aliquot sum) s(n): 55083093552
• 20155184640 is an abundant number, because the sum of its proper divisors (55083093552) is greater than itself. Its abundance is 34927908912

Bases of 20155184640

• Binary: 10010110001010101111011011000000000₂
• Hexadecimal: 0x4B157B600
• Base-36: 99BVK00

Squares and roots of 20155184640

• 20155184640 squared (20155184640²) is 406231467872491929600
• 20155184640 cubed (20155184640³) is 8187670241548302817997881344000
• The square root of 20155184640 is 141968.9566067173
• The cube root of 20155184640 is 2721.4201349925

Scales and comparisons

• 20,155,184,640 seconds is equal to 640 years, 45 weeks, 2 days, 14 hours, 24 minutes.
• To count from 1 to 20,155,184,640 would take you about one thousand, two hundred eighty-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 20155184640 cubic inches would be around 226.8 feet tall.

Recreational maths with 20155184640

• 20155184640 backwards is 04648155102
• 20155184640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20155184640's digits is 36
• More coming soon!