21290352480

Names of 21290352480

• Cardinal: 21290352480 can be written as Twenty-one billion, two hundred ninety million, three hundred fifty-two thousand, four hundred eighty.

Scientific notation

• Scientific notation: 2.129035248 × 10¹⁰

Factors of 21290352480

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 20298

Divisors of 21290352480

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 757 1440 1514 2271 3028 3785 4542 6056 6813 7570 9084 11355 12112 13626 15140 18168 19531 22710 24224 27252 30280 34065 36336 39062 45420 54504 58593 60560 68130 72672 78124 90840 97655 109008 117186 121120 136260 156248 175779 181680 195310 218016 234372 272520 292965 312496 351558 363360 390620 468744 545040 585930 624992 703116 781240 878895 937488 1090080 1171860 1406232 1562480 1757790 1874976 2343720 2812464 3124960 3515580 4687440 5624928 7031160 9374880 14062320 14784967 28124640 29569934 44354901 59139868 73924835 88709802 118279736 133064703 147849670 177419604 221774505 236559472 266129406 295699340 354839208 443549010 473118944 532258812 591398680 665323515 709678416 887098020 1064517624 1182797360 1330647030 1419356832 1774196040 2129035248 2365594720 2661294060 3548392080 4258070496 5322588120 7096784160 10645176240 21290352480
• Sum of all divisors σ(n): 72753027984
• Sum of proper divisors (its aliquot sum) s(n): 51462675504
• 21290352480 is an abundant number, because the sum of its proper divisors (51462675504) is greater than itself. Its abundance is 30172323024

Bases of 21290352480

• Binary: 10011110101000000001111111101100000₂
• Hexadecimal: 0x4F500FF60
• Base-36: 9S3Q540

Squares and roots of 21290352480

• 21290352480 squared (21290352480²) is 453279108722642150400
• 21290352480 cubed (21290352480³) is 9650471996525293938921172992000
• The square root of 21290352480 is 145912.1395909195
• The cube root of 21290352480 is 2771.5812664353

Scales and comparisons

• 21,290,352,480 seconds is equal to 676 years, 50 weeks, 2 days, 2 hours, 48 minutes.
• To count from 1 to 21,290,352,480 would take you about one thousand, three hundred fifty-three 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 21290352480 cubic inches would be around 231 feet tall.

Recreational maths with 21290352480

• 21290352480 backwards is 08425309212
• 21290352480 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21290352480's digits is 36
• More coming soon!