640735785699300864

Names of 640735785699300864

• Cardinal: 640735785699300864 can be written as Six hundred forty quadrillion, seven hundred thirty-five trillion, seven hundred eighty-five billion, six hundred ninety-nine million, three hundred thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 6.40735785699300864 × 10¹⁷

Factors of 640735785699300864

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 2135

Divisors of 640735785699300864

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 24 27 32 34 36 48 51 54 64 68 72 96 102 108 128 136 144 153 192 204 216 256 272 288 289 306 384 408 432 459 512 544 576 578 612 768 816 864 867 918 1088 1152 1156 1224 1536 1632 1728 1734 1836 2113 2176 2304 2312 2448 2601 3264 3456 3468 3672 4226 4352 4608 4624 4896 4913 5202 6339 6528 6912 6936 7344 7803 8452 8704 9248 9792 9826 10404 12678 13056 13824 13872 14688 14739 15606 16904 18496 19017 19584 19652 20808 25356 26112 27744 29376 29478 31212 33808 35921 36992 38034 39168 39304 41616 44217 50712 55488 57051 58752 58956 62424 67616 71842 73984 76068 78336 78608 83232 88434 101424 107763 110976 114102 117504 117912 124848 132651 135232 143684 147968 152136 157216 166464 176868 202848 215526 221952 228204 235008 235824 249696 265302 270464 287368 304272 314432 323289 332928 353736 405696 431052 443904 456408 471648 499392 530604 540928 574736 608544 610657 628864 646578 665856 707472 811392 862104 912816 943296 969867 998784 1061208 1081856 1149472 1217088 1221314 1257728 1293156 1331712 1414944 1622784 1724208 1825632 1831971 1886592 1939734 1997568 2122416 2298944 2434176 2442628 2515456 2586312 2829888 3245568 3448416 3651264 3663942 3773184 3879468 3995136 4244832 4464769 4597888 4868352 4885256 5172624 5495913 5659776 6896832 7302528 7327884 7546368 7758936 8489664 8929538 9195776 9736704 9770512 10345248 10381169 10991826 11319552 13394307 13793664 14605056 14655768 15517872 16487739 16979328 17859076 18391552 19541024 20690496 20762338 21983652 22639104 26788614 27587328 29210112 29311536 31035744 31143507 32975478 33958656 35718152 39082048 40182921 41380992 41524676 43967304 53577228 55174656 58623072 62071488 62287014 65950956 67917312 71436304 75901073 78164096 80365842 82761984 83049352 87934608 93430521 107154456 117246144 120548763 124142976 124574028 131901912 142872608 151802146 156328192 160731684 165523968 166098704 175869216 186861042 214308912 227703219 234492288 241097526 248285952 249148056 263803824 280291563 285745216 303604292 312656384 321463368 332197408 351738432 373722084 428617824 455406438 468984576 482195052 496571904 498296112 527607648 560583126 571490432 607208584 642926736 664394816 683109657 703476864 747444168 857235648 910812876 937969152 964390104 996592224 1055215296 1121166252 1142980864 1214417168 1285853472 1290318241 1328789632 1366219314 1406953728 1494888336 1714471296 1821625752 1928780208 1993184448 2049328971 2110430592 2242332504 2285961728 2428834336 2571706944 2580636482 2657579264 2732438628 2813907456 2989776672 3428942592 3643251504 3857560416 3870954723 3986368896 4098657942 4220861184 4484665008 4857668672 5143413888 5161272964 5315158528 5464877256 5979553344 6857885184 7286503008 7715120832 7741909446 7972737792 8197315884 8441722368 8969330016 9715337344 10286827776 10322545928 10929754512 11612864169 11959106688 14573006016 15430241664 15483818892 15945475584 16394631768 17938660032 19430674688 20573655552 20645091856 21859509024 21935410097 23225728338 23918213376 29146012032 30860483328 30967637784 32789263536 34838592507 35877320064 38861349376 41290183712 43719018048 43870820194 46451456676 47836426752 58292024064 61720966656 61935275568 65578527072 65806230291 69677185014 71754640128 82580367424 87438036096 87741640388 92902913352 116584048128 123870551136 131157054144 131612460582 139354370028 143509280256 165160734848 174876072192 175483280776 185805826704 197418690873 247741102272 262314108288 263224921164 278708740056 330321469696 349752144384 350966561552 371611653408 394837381746 495482204544 524628216576 526449842328 557417480112 592256072619 660642939392 701933123104 743223306816 789674763492 990964409088 1049256433152 1052899684656 1114834960224 1184512145238 1403866246208 1486446613632 1579349526984 1981928818176 2105799369312 2229669920448 2369024290476 2807732492416 2972893227264 3158699053968 4211598738624 4459339840896 4738048580952 5615464984832 5945786454528 6317398107936 8423197477248 8918679681792 9476097161904 11230929969664 12634796215872 16846394954496 17837359363584 18952194323808 25269592431744 33692789908992 37904388647616 50539184863488 75808777295232 101078369726976 151617554590464 303235109180928
• Sum of all divisors σ(n): 641386687519439136
• Sum of proper divisors (its aliquot sum) s(n): 650901820138272
• 640735785699300864 is a deficient number, because the sum of its proper divisors (650901820138272) is less than itself. Its deficiency is 640084883879162592

Bases of 640735785699300864

• Binary: 100011100100010110011100110101100101011111001101011000000000₂
• Hexadecimal: 0x8E459CD657CD600
• Base-36: 4V8XVOEHMDC0

Squares and roots of 640735785699300864

• 640735785699300864 squared (640735785699300864²) is 410542347075700401581458178391146496
• 640735785699300864 cubed (640735785699300864³) is 263049173316383969250736011607181957693354234603372544
• The square root of 640735785699300864 is 800459733.9649889373
• 640735785699300864 is a perfect cube number. Its cube root is 862104

Scales and comparisons

• 640,735,785,699,300,864 seconds is equal to 20,373,416,059 years, 16 weeks, 5 days, 18 hours, 14 minutes, 24 seconds.
• To count from 1 to 640,735,785,699,300,864 would take you about sixty-one billion, one hundred twenty million, two hundred forty-eight thousand, one hundred seventy-seven 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 640735785699300864 cubic inches would be around 71842 feet tall.

Recreational maths with 640735785699300864

• 640735785699300864 backwards is 468003996587537046
• The number of decimal digits it has is: 18
• The sum of 640735785699300864's digits is 90
• More coming soon!