21078016859240

Names of 21078016859240

• Cardinal: 21078016859240 can be written as Twenty-one trillion, seventy-eight billion, sixteen million, eight hundred fifty-nine thousand, two hundred forty.

Scientific notation

• Scientific notation: 2.107801685924 × 10¹³

Factors of 21078016859240

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 286

Divisors of 21078016859240

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 4 5 8 10 11 20 22 29 40 44 55 58 88 110 116 121 145 220 232 239 242 290 319 440 478 484 580 605 638 956 968 1160 1195 1210 1276 1331 1595 1912 2390 2420 2552 2629 2662 3190 3509 4780 4840 5258 5324 6380 6655 6931 7018 9560 10516 10648 12760 13145 13310 13862 14036 17545 21032 26290 26620 27724 28072 28919 34655 35090 38599 52580 53240 55448 57121 57838 69310 70180 76241 77198 105160 114242 115676 138620 140360 144595 152482 154396 192995 228484 231352 277240 285605 289190 304964 308792 318109 381205 385990 456968 571210 578380 609928 628331 636218 762410 771980 838651 1142420 1156760 1256662 1272436 1524820 1543960 1590545 1656509 1677302 2284840 2513324 2544872 3049640 3141655 3181090 3313018 3354604 4193255 5026648 6283310 6362180 6626036 6709208 6911641 8282545 8386510 9225161 12566620 12724360 13252072 13651919 13823282 16565090 16773020 18221599 18450322 25133240 27303838 27646564 33130180 33546040 34558205 36443198 36900644 46125805 54607676 55293128 66260360 68259595 69116410 72886396 73801288 76028051 91107995 92251610 109215352 136519190 138232820 145772792 150171109 152056102 182215990 184503220 200437589 273038380 276465640 300342218 304112204 364431980 369006440 380140255 395905651 400875178 546076760 600684436 608224408 728863960 750855545 760280510 791811302 801750356 1002187945 1201368872 1501711090 1520561020 1583622604 1603500712 1651882199 1979528255 2004375890 2204813479 3003422180 3041122040 3167245208 3303764398 3959056510 4008751780 4354962161 4409626958 6006844360 6607528796 7918113020 8017503560 8259410995 8709924322 8819253916 11024067395 13215057592 15836226040 16518821990 17419848644 17638507832 18170704189 21774810805 22048134790 33037643980 34839697288 36341408378 43549621610 44096269580 47904583771 66075287960 72682816756 87099243220 88192539160 90853520945 95809167542 145365633512 174198486440 181707041890 191618335084 239522918855 363414083780 383236670168 479045837710 526950421481 726828167560 958091675420 1053900842962 1916183350840 2107801685924 2634752107405 4215603371848 5269504214810 10539008429620 21078016859240
• Sum of all divisors σ(n): 54190041984000
• Sum of proper divisors (its aliquot sum) s(n): 33112025124760
• 21078016859240 is an abundant number, because the sum of its proper divisors (33112025124760) is greater than itself. Its abundance is 12034008265520

Bases of 21078016859240

• Binary: 100110010101110011011101101010001110001101000₂
• Hexadecimal: 0x132B9BB51C68
• Base-36: 7GZ3V0PK8

Squares and roots of 21078016859240

• 21078016859240 squared (21078016859240²) is 444282794718405673973377600
• 21078016859240 cubed (21078016859240³) is 9364600237344818824344527931726569024000
• The square root of 21078016859240 is 4591080.1407991129
• The cube root of 21078016859240 is 27623.3650335677

Scales and comparisons

• 21,078,016,859,240 seconds is equal to 670,215 years, 38 weeks, 2 days, 11 hours, 7 minutes, 20 seconds.
• To count from 1 to 21,078,016,859,240 would take you about one million, six hundred seventy-five thousand, five hundred thirty-nine 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 21078016859240 cubic inches would be around 2301.9 feet tall.

Recreational maths with 21078016859240

• 21078016859240 backwards is 04295861087012
• The number of decimal digits it has is: 14
• The sum of 21078016859240's digits is 53
• More coming soon!