21139144704

Names of 21139144704

• Cardinal: 21139144704 can be written as Twenty-one billion, one hundred thirty-nine million, one hundred forty-four thousand, seven hundred four.

Scientific notation

• Scientific notation: 2.1139144704 × 10¹⁰

Factors of 21139144704

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 299

Divisors of 21139144704

• Number of divisors d(n): 270
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 23 24 32 36 46 48 64 69 72 92 96 128 138 144 184 192 207 256 271 276 288 368 384 414 512 529 542 552 576 736 768 813 828 1024 1058 1084 1104 1152 1472 1536 1587 1626 1656 2048 2116 2168 2208 2304 2439 2944 3072 3174 3252 3312 4096 4232 4336 4416 4608 4761 4878 5888 6144 6233 6348 6504 6624 8192 8464 8672 8832 9216 9522 9756 11776 12288 12466 12696 13008 13248 16384 16928 17344 17664 18432 18699 19044 19512 23552 24576 24932 25392 26016 26496 33856 34688 35328 36864 37398 38088 39024 47104 49152 49864 50784 52032 52992 56097 67712 69376 70656 73728 74796 76176 78048 94208 99728 101568 104064 105984 112194 135424 138752 141312 143359 147456 149592 152352 156096 188416 199456 203136 208128 211968 224388 270848 277504 282624 286718 299184 304704 312192 376832 398912 406272 416256 423936 430077 448776 541696 555008 565248 573436 598368 609408 624384 797824 812544 832512 847872 860154 897552 1083392 1110016 1130496 1146872 1196736 1218816 1248768 1290231 1595648 1625088 1665024 1695744 1720308 1795104 2166784 2220032 2293744 2393472 2437632 2497536 2580462 3191296 3250176 3330048 3391488 3440616 3590208 4333568 4440064 4587488 4786944 4875264 4995072 5160924 6382592 6500352 6660096 6881232 7180416 8667136 9174976 9573888 9750528 9990144 10321848 12765184 13000704 13320192 13762464 14360832 18349952 19147776 19501056 19980288 20643696 25530368 26001408 27524928 28721664 36699904 38295552 39002112 39960576 41287392 51060736 55049856 57443328 73399808 76591104 78004224 82574784 102121472 110099712 114886656 146799616 153182208 165149568 220199424 229773312 293599232 306364416 330299136 440398848 459546624 587198464 660598272 880797696 919093248 1174396928 1321196544 1761595392 2348793856 2642393088 3523190784 5284786176 7046381568 10569572352 21139144704
• Sum of all divisors σ(n): 64072853936
• Sum of proper divisors (its aliquot sum) s(n): 42933709232
• 21139144704 is an abundant number, because the sum of its proper divisors (42933709232) is greater than itself. Its abundance is 21794564528

Bases of 21139144704

• Binary: 10011101011111111011100000000000000₂
• Hexadecimal: 0x4EBFDC000
• Base-36: 9PLP8G0

Squares and roots of 21139144704

• 21139144704 squared (21139144704²) is 446863438816651247616
• 21139144704 cubed (21139144704³) is 9446310896072241248056759025664
• The square root of 21139144704 is 145393.0696560191
• The cube root of 21139144704 is 2765.0042544573

Scales and comparisons

• 21,139,144,704 seconds is equal to 672 years, 8 weeks, 2 days, 38 minutes, 24 seconds.
• To count from 1 to 21,139,144,704 would take you about one thousand, three hundred forty-four 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 21139144704 cubic inches would be around 230.4 feet tall.

Recreational maths with 21139144704

• 21139144704 backwards is 40744193112
• 21139144704 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21139144704's digits is 36
• More coming soon!