640344970427904

Names of 640344970427904

• Cardinal: 640344970427904 can be written as Six hundred forty trillion, three hundred forty-four billion, nine hundred seventy million, four hundred twenty-seven thousand, nine hundred four.

Scientific notation

• Scientific notation: 6.40344970427904 × 10¹⁴

Factors of 640344970427904

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 140909

Divisors of 640344970427904

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 128 144 168 192 224 252 256 288 336 384 448 504 512 576 672 768 896 1008 1152 1344 1536 1792 2016 2304 2688 3584 4032 4608 5376 8064 10752 16128 32256 140897 281794 422691 563588 845382 986279 1127176 1268073 1690764 1972558 2254352 2536146 2958837 3381528 3945116 4508704 5072292 5917674 6763056 7890232 8876511 9017408 10144584 11835348 13526112 15780464 17753022 18034816 20289168 23670696 27052224 31560928 35506044 36069632 40578336 47341392 54104448 63121856 71012088 72139264 81156672 94682784 108208896 126243712 142024176 162313344 189365568 216417792 252487424 284048352 324626688 378731136 504974848 568096704 649253376 757462272 1136193408 1514924544 2272386816 4544773632 19851964609 39703929218 59555893827 79407858436 119111787654 138963752263 158815716872 178667681481 238223575308 277927504526 317631433744 357335362962 416891256789 476447150616 555855009052 635262867488 714670725924 833782513578 952894301232 1111710018104 1250673770367 1270525734976 1429341451848 1667565027156 1905788602464 2223420036208 2501347540734 2541051469952 2858682903696 3335130054312 3811577204928 4446840072416 5002695081468 5082102939904 5717365807392 6670260108624 7623154409856 8893680144832 10005390162936 10164205879808 11434731614784 13340520217248 15246308819712 17787360289664 20010780325872 22869463229568 26681040434496 30492617639424 35574720579328 40021560651744 45738926459136 53362080868992 71149441158656 80043121303488 91477852918272 106724161737984 160086242606976 213448323475968 320172485213952 640344970427904
• Sum of all divisors σ(n): 2112105209100744
• Sum of proper divisors (its aliquot sum) s(n): 1471760238672840
• 640344970427904 is an abundant number, because the sum of its proper divisors (1471760238672840) is greater than itself. Its abundance is 831415268244936

Bases of 640344970427904

• Binary: 10010001100110001111101110011111101111111000000000₂
• Hexadecimal: 0x24663EE7EFE00
• Base-36: 6AZEF26BK0

Squares and roots of 640344970427904

• 640344970427904 squared (640344970427904²) is 410041681152313248268861833216
• 640344970427904 cubed (640344970427904³) is 262568128191686067925126330712083577400459264
• The square root of 640344970427904 is 25305038.4395658249
• The cube root of 640344970427904 is 86192.8684921431

Scales and comparisons

• 640,344,970,427,904 seconds is equal to 20,360,989 years, 17 weeks, 5 days, 16 hours, 38 minutes, 24 seconds.
• To count from 1 to 640,344,970,427,904 would take you about fifty million, nine hundred two thousand, four hundred seventy-three 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 640344970427904 cubic inches would be around 7182.7 feet tall.

Recreational maths with 640344970427904

• 640344970427904 backwards is 409724079443046
• 640344970427904 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 640344970427904's digits is 63
• More coming soon!