21428575480

Names of 21428575480

• Cardinal: 21428575480 can be written as Twenty-one billion, four hundred twenty-eight million, five hundred seventy-five thousand, four hundred eighty.

Scientific notation

• Scientific notation: 2.142857548 × 10¹⁰

Factors of 21428575480

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 142628

Divisors of 21428575480

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 13 17 20 26 34 40 52 65 68 85 104 130 136 170 221 260 289 340 442 520 578 680 884 1105 1156 1445 1768 2210 2312 2890 3757 4420 5780 7514 8840 11560 15028 18785 30056 37570 75140 142591 150280 285182 570364 712955 1140728 1425910 1853683 2424047 2851820 3707366 4848094 5703640 7414732 9268415 9696188 12120235 14829464 18536830 19392376 24240470 31512611 37073660 41208799 48480940 63025222 74147320 82417598 96961880 126050444 157563055 164835196 206043995 252100888 315126110 329670392 412087990 535714387 630252220 824175980 1071428774 1260504440 1648351960 2142857548 2678571935 4285715096 5357143870 10714287740 21428575480
• Sum of all divisors σ(n): 55157437440
• Sum of proper divisors (its aliquot sum) s(n): 33728861960
• 21428575480 is an abundant number, because the sum of its proper divisors (33728861960) is greater than itself. Its abundance is 12300286480

Bases of 21428575480

• Binary: 10011111101001111100001110011111000₂
• Hexadecimal: 0x4FD3E1CF8
• Base-36: 9UE0QNS

Squares and roots of 21428575480

• 21428575480 squared (21428575480²) is 459183847102057230400
• 21428575480 cubed (21428575480³) is 9839655726823212624906150592000
• The square root of 21428575480 is 146385.0247805425
• The cube root of 21428575480 is 2777.5662964875

Scales and comparisons

• 21,428,575,480 seconds is equal to 681 years, 18 weeks, 5 days, 22 hours, 4 minutes, 40 seconds.
• To count from 1 to 21,428,575,480 would take you about one thousand, three hundred sixty-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 21428575480 cubic inches would be around 231.5 feet tall.

Recreational maths with 21428575480

• 21428575480 backwards is 08457582412
• The number of decimal digits it has is: 11
• The sum of 21428575480's digits is 46
• More coming soon!