21315338460

Names of 21315338460

• Cardinal: 21315338460 can be written as Twenty-one billion, three hundred fifteen million, three hundred thirty-eight thousand, four hundred sixty.

Scientific notation

• Scientific notation: 2.131533846 × 10¹⁰

Factors of 21315338460

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 45409

Divisors of 21315338460

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 45 52 54 60 65 67 78 90 108 117 130 134 135 156 180 195 201 234 260 268 270 335 351 390 402 468 540 585 603 670 702 780 804 871 1005 1170 1206 1340 1404 1742 1755 1809 2010 2340 2412 2613 3015 3484 3510 3618 4020 4355 5226 6030 7020 7236 7839 8710 9045 10452 12060 13065 15678 17420 18090 23517 26130 31356 36180 39195 45319 47034 52260 78390 90638 94068 117585 135957 156780 181276 226595 235170 271914 407871 453190 470340 543828 589147 679785 815742 906380 1178294 1223613 1359570 1631484 1767441 2039355 2356588 2447226 2719140 2945735 3036373 3534882 4078710 4894452 5302323 5891470 6072746 6118065 7069764 8157420 8837205 9109119 10604646 11782940 12145492 12236130 15181865 15906969 17674410 18218238 21209292 24472260 26511615 27327357 30363730 31813938 35348820 36436476 39472849 45545595 53023230 54654714 60727460 63627876 78945698 79534845 81982071 91091190 106046460 109309428 118418547 136636785 157891396 159069690 163964142 182182380 197364245 236837094 273273570 318139380 327928284 355255641 394728490 409910355 473674188 546547140 592092735 710511282 789456980 819820710 1065766923 1184185470 1421022564 1639641420 1776278205 2131533846 2368370940 3552556410 4263067692 5328834615 7105112820 10657669230 21315338460
• Sum of all divisors σ(n): 72482995200
• Sum of proper divisors (its aliquot sum) s(n): 51167656740
• 21315338460 is an abundant number, because the sum of its proper divisors (51167656740) is greater than itself. Its abundance is 29852318280

Bases of 21315338460

• Binary: 10011110110011111100100000011011100₂
• Hexadecimal: 0x4F67E40DC
• Base-36: 9SILOF0

Squares and roots of 21315338460

• 21315338460 squared (21315338460²) is 454343653664355171600
• 21315338460 cubed (21315338460³) is 9684488755008749720305379736000
• The square root of 21315338460 is 145997.7344344767
• The cube root of 21315338460 is 2772.6650687717

Scales and comparisons

• 21,315,338,460 seconds is equal to 677 years, 39 weeks, 4 days, 7 hours, 21 minutes.
• To count from 1 to 21,315,338,460 would take you about one thousand, three hundred fifty-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 21315338460 cubic inches would be around 231.1 feet tall.

Recreational maths with 21315338460

• 21315338460 backwards is 06483351312
• 21315338460 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21315338460's digits is 36
• More coming soon!