68640272904816

Names of 68640272904816

• Cardinal: 68640272904816 can be written as Sixty-eight trillion, six hundred forty billion, two hundred seventy-two million, nine hundred four thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 6.8640272904816 × 10¹³

Factors of 68640272904816

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3683712

Divisors of 68640272904816

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 24 27 34 36 48 51 54 68 72 102 108 136 144 153 204 216 272 306 408 432 459 612 816 918 1224 1836 2448 2539 3672 5078 7344 7617 10156 15234 20312 22851 30468 40624 43163 45702 60936 68553 86326 91404 121872 129489 137106 172652 182808 258978 274212 345304 365616 388467 517956 548424 690608 776934 1035912 1096848 1165401 1553868 2071824 2330802 3107736 3681151 4661604 6215472 7362302 9323208 11043453 14724604 18646416 22086906 29449208 33130359 44173812 58898416 62579567 66260718 88347624 99391077 125159134 132521436 176695248 187738701 198782154 250318268 265042872 375477402 397564308 500636536 530085744 563216103 750954804 795128616 1001273072 1126432206 1501909608 1590257232 1689648309 2252864412 3003819216 3379296618 4505728824 6758593236 9011457648 9346442389 13517186472 18692884778 27034372944 28039327167 37385769556 56078654334 74771539112 84117981501 112157308668 149543078224 158889520613 168235963002 224314617336 252353944503 317779041226 336471926004 448629234672 476668561839 504707889006 635558082452 672943852008 953337123678 1009415778012 1271116164904 1345887704016 1430005685517 1906674247356 2018831556024 2542232329808 2860011371034 3813348494712 4037663112048 4290017056551 5720022742068 7626696989424 8580034113102 11440045484136 17160068226204 22880090968272 34320136452408 68640272904816
• Sum of all divisors σ(n): 208694814105600
• Sum of proper divisors (its aliquot sum) s(n): 140054541200784
• 68640272904816 is an abundant number, because the sum of its proper divisors (140054541200784) is greater than itself. Its abundance is 71414268295968

Bases of 68640272904816

• Binary: 1111100110110110001111000101010111001001110000₂
• Hexadecimal: 0x3E6D8F157270
• Base-36: OBWWM8XO0

Squares and roots of 68640272904816

• 68640272904816 squared (68640272904816²) is 4711487064447617518595993856
• 68640272904816 cubed (68640272904816³) is 323397757891194875933629569092121608810496
• The square root of 68640272904816 is 8284942.5408276669
• The cube root of 68640272904816 is 40944.2575629681

Scales and comparisons

• 68,640,272,904,816 seconds is equal to 2,182,548 years, 18 weeks, 5 days, 1 hour, 33 minutes, 36 seconds.
• To count from 1 to 68,640,272,904,816 would take you about five million, four hundred fifty-six thousand, three hundred seventy 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 68640272904816 cubic inches would be around 3412 feet tall.

Recreational maths with 68640272904816

• 68640272904816 backwards is 61840927204686
• The number of decimal digits it has is: 14
• The sum of 68640272904816's digits is 63
• More coming soon!