21238882560

Names of 21238882560

• Cardinal: 21238882560 can be written as Twenty-one billion, two hundred thirty-eight million, eight hundred eighty-two thousand, five hundred sixty.

Scientific notation

• Scientific notation: 2.123888256 × 10¹⁰

Factors of 21238882560

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 87810

Divisors of 21238882560

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 32 35 36 40 42 45 48 54 56 60 63 64 70 72 80 84 90 96 105 108 112 120 126 128 135 140 144 160 168 180 189 192 210 216 224 240 252 256 270 280 288 315 320 336 360 378 384 420 432 448 480 504 540 560 576 630 640 672 720 756 768 840 864 896 945 960 1008 1080 1120 1152 1260 1280 1344 1440 1512 1680 1728 1792 1890 1920 2016 2160 2240 2304 2520 2688 2880 3024 3360 3456 3780 3840 4032 4320 4480 5040 5376 5760 6048 6720 6912 7560 8064 8640 8960 10080 11520 12096 13440 15120 16128 17280 20160 24192 26880 30240 34560 40320 48384 60480 80640 87793 120960 175586 241920 263379 351172 438965 526758 614551 702344 790137 877930 1053516 1229102 1316895 1404688 1580274 1755860 1843653 2107032 2370411 2458204 2633790 2809376 3072755 3160548 3511720 3687306 3950685 4214064 4740822 4916408 5267580 5530959 5618752 6145510 6321096 7023440 7374612 7901370 8428128 9218265 9481644 9832816 10535160 11061918 11237504 11852055 12291020 12642192 14046880 14749224 15802740 16592877 16856256 18436530 18963288 19665632 21070320 22123836 22475008 23704110 24582040 25284384 27654795 28093760 29498448 31605480 33185754 33712512 36873060 37926576 39331264 42140640 44247672 47408220 49164080 50568768 55309590 56187520 58996896 63210960 66371508 67425024 73746120 75853152 78662528 82964385 84281280 88495344 94816440 98328160 101137536 110619180 112375040 117993792 126421920 132743016 147492240 151706304 157325056 165928770 168562560 176990688 189632880 196656320 202275072 221238360 235987584 252843840 265486032 294984480 303412608 331857540 337125120 353981376 379265760 393312640 442476720 471975168 505687680 530972064 589968960 606825216 663715080 707962752 758531520 786625280 884953440 1011375360 1061944128 1179937920 1327430160 1415925504 1517063040 1769906880 2123888256 2359875840 2654860320 3034126080 3539813760 4247776512 5309720640 7079627520 10619441280 21238882560
• Sum of all divisors σ(n): 86136449280
• Sum of proper divisors (its aliquot sum) s(n): 64897566720
• 21238882560 is an abundant number, because the sum of its proper divisors (64897566720) is greater than itself. Its abundance is 43658684160

Bases of 21238882560

• Binary: 10011110001111011111010000100000000₂
• Hexadecimal: 0x4F1EFA100
• Base-36: 9R92YO0

Squares and roots of 21238882560

• 21238882560 squared (21238882560²) is 451090132397472153600
• 21238882560 cubed (21238882560³) is 9580650345964762311180681216000
• The square root of 21238882560 is 145735.6598777389
• The cube root of 21238882560 is 2769.3460102469

Scales and comparisons

• 21,238,882,560 seconds is equal to 675 years, 17 weeks, 1 day, 9 hours, 36 minutes.
• To count from 1 to 21,238,882,560 would take you about one thousand, three hundred fifty 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 21238882560 cubic inches would be around 230.8 feet tall.

Recreational maths with 21238882560

• 21238882560 backwards is 06528883212
• 21238882560 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21238882560's digits is 45
• More coming soon!