30821539840

Names of 30821539840

• Cardinal: 30821539840 can be written as Thirty billion, eight hundred twenty-one million, five hundred thirty-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 3.082153984 × 10¹⁰

Factors of 30821539840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 8296

Divisors of 30821539840

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 52 56 64 65 70 80 91 104 112 128 130 140 160 182 208 224 256 260 280 320 364 416 448 455 512 520 560 640 728 832 896 910 1024 1040 1120 1280 1456 1664 1792 1820 2048 2080 2240 2560 2912 3328 3584 3640 4096 4160 4480 5120 5824 6656 7168 7280 8192 8269 8320 8960 10240 11648 13312 14336 14560 16538 16640 17920 20480 23296 26624 28672 29120 33076 33280 35840 40960 41345 46592 53248 57344 57883 58240 66152 66560 71680 82690 93184 106496 107497 115766 116480 132304 133120 143360 165380 186368 214994 231532 232960 264608 266240 286720 289415 330760 372736 429988 463064 465920 529216 532480 537485 578830 661520 745472 752479 859976 926128 931840 1058432 1074970 1157660 1323040 1504958 1719952 1852256 1863680 2116864 2149940 2315320 2646080 3009916 3439904 3704512 3727360 3762395 4233728 4299880 4630640 5292160 6019832 6879808 7409024 7524790 8467456 8599760 9261280 10584320 12039664 13759616 14818048 15049580 16934912 17199520 18522560 21168640 24079328 27519232 29636096 30099160 33869824 34399040 37045120 42337280 48158656 55038464 59272192 60198320 67739648 68798080 74090240 84674560 96317312 110076928 118544384 120396640 137596160 148180480 169349120 192634624 220153856 237088768 240793280 275192320 296360960 338698240 385269248 440307712 474177536 481586560 550384640 592721920 770538496 880615424 963173120 1100769280 1185443840 1541076992 1926346240 2201538560 2370887680 3082153984 3852692480 4403077120 6164307968 7705384960 15410769920 30821539840
• Sum of all divisors σ(n): 91047539520
• Sum of proper divisors (its aliquot sum) s(n): 60225999680
• 30821539840 is an abundant number, because the sum of its proper divisors (60225999680) is greater than itself. Its abundance is 29404459840

Bases of 30821539840

• Binary: 11100101101000110110110000000000000₂
• Hexadecimal: 0x72D1B6000
• Base-36: E5QCKCG

Squares and roots of 30821539840

• 30821539840 squared (30821539840²) is 949967318108707225600
• 30821539840 cubed (30821539840³) is 29279455541785473204726267904000
• The square root of 30821539840 is 175560.6443369357
• The cube root of 30821539840 is 3135.3409693861

Scales and comparisons

• 30,821,539,840 seconds is equal to 980 years, 1 week, 3 days, 18 hours, 50 minutes, 40 seconds.
• To count from 1 to 30,821,539,840 would take you about one thousand, nine hundred sixty 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 30821539840 cubic inches would be around 261.3 feet tall.

Recreational maths with 30821539840

• 30821539840 backwards is 04893512803
• The number of decimal digits it has is: 11
• The sum of 30821539840's digits is 43
• More coming soon!