21007549680

Names of 21007549680

• Cardinal: 21007549680 can be written as Twenty-one billion, seven million, five hundred forty-nine thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.100754968 × 10¹⁰

Factors of 21007549680

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 63057

Divisors of 21007549680

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 107 120 130 156 195 208 214 240 260 312 321 390 428 520 535 624 642 780 856 1040 1070 1284 1391 1560 1605 1712 2140 2568 2782 3120 3210 4173 4280 5136 5564 6420 6955 8346 8560 11128 12840 13910 16692 20865 22256 25680 27820 33384 41730 55640 62927 66768 83460 111280 125854 166920 188781 251708 314635 333840 377562 503416 629270 755124 818051 943905 1006832 1258540 1510248 1636102 1887810 2454153 2517080 3020496 3272204 3775620 4090255 4908306 5034160 6544408 6733189 7551240 8180510 9816612 12270765 13088816 13466378 15102480 16361020 19633224 20199567 24541530 26932756 32722040 33665945 39266448 40399134 49083060 53865512 65444080 67331890 80798268 87531457 98166120 100997835 107731024 134663780 161596536 175062914 196332240 201995670 262594371 269327560 323193072 350125828 403991340 437657285 525188742 538655120 700251656 807982680 875314570 1050377484 1312971855 1400503312 1615965360 1750629140 2100754968 2625943710 3501258280 4201509936 5251887420 7002516560 10503774840 21007549680
• Sum of all divisors σ(n): 70789469184
• Sum of proper divisors (its aliquot sum) s(n): 49781919504
• 21007549680 is an abundant number, because the sum of its proper divisors (49781919504) is greater than itself. Its abundance is 28774369824

Bases of 21007549680

• Binary: 10011100100001001011100010011110000₂
• Hexadecimal: 0x4E425C4F0
• Base-36: 9NFCP2O

Squares and roots of 21007549680

• 21007549680 squared (21007549680²) is 441317143557668102400
• 21007549680 cubed (21007549680³) is 9270991817923404606119327232000
• The square root of 21007549680 is 144939.8139918773
• The cube root of 21007549680 is 2759.2547557321

Scales and comparisons

• 21,007,549,680 seconds is equal to 667 years, 50 weeks, 4 days, 22 hours, 28 minutes.
• To count from 1 to 21,007,549,680 would take you about one thousand, three hundred thirty-five 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 21007549680 cubic inches would be around 229.9 feet tall.

Recreational maths with 21007549680

• 21007549680 backwards is 08694570012
• The number of decimal digits it has is: 11
• The sum of 21007549680's digits is 42
• More coming soon!