640124452864

Names of 640124452864

• Cardinal: 640124452864 can be written as Six hundred forty billion, one hundred twenty-four million, four hundred fifty-two thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 6.40124452864 × 10¹¹

Factors of 640124452864

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 14464

Divisors of 640124452864

• Number of divisors d(n): 114
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 64 104 128 169 208 256 338 416 512 676 832 1024 1352 1664 2048 2704 3328 4096 5408 6656 8192 10816 13312 14449 16384 21632 26624 28898 32768 43264 53248 57796 65536 86528 106496 115592 131072 173056 187837 212992 231184 262144 346112 375674 425984 462368 692224 751348 851968 924736 1384448 1502696 1703936 1849472 2441881 2768896 3005392 3407872 3698944 4883762 5537792 6010784 7397888 9767524 11075584 12021568 14795776 19535048 22151168 24043136 29591552 39070096 44302336 48086272 59183104 78140192 96172544 118366208 156280384 192345088 236732416 312560768 384690176 473464832 625121536 769380352 946929664 1250243072 1538760704 1893859328 2500486144 3077521408 3787718656 5000972288 6155042816 10001944576 12310085632 20003889152 24620171264 40007778304 49240342528 80015556608 160031113216 320062226432 640124452864
• Sum of all divisors σ(n): 1386398328450
• Sum of proper divisors (its aliquot sum) s(n): 746273875586
• 640124452864 is an abundant number, because the sum of its proper divisors (746273875586) is greater than itself. Its abundance is 106149422722

Bases of 640124452864

• Binary: 1001010100001010011001000000000000000000₂
• Hexadecimal: 0x950A640000
• Base-36: 862HKKXS

Squares and roots of 640124452864

• 640124452864 squared (640124452864²) is 409759315154435357802496
• 640124452864 cubed (640124452864³) is 262296957419160277076178825373548544
• The square root of 640124452864 is 800077.7792589917
• The cube root of 640124452864 is 8618.2973188561

Scales and comparisons

• 640,124,452,864 seconds is equal to 20,353 years, 50 weeks, 5 days, 20 hours, 1 minute, 4 seconds.
• To count from 1 to 640,124,452,864 would take you about forty thousand, seven hundred 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 640124452864 cubic inches would be around 718.2 feet tall.

Recreational maths with 640124452864

• 640124452864 backwards is 468254421046
• The number of decimal digits it has is: 12
• The sum of 640124452864's digits is 46
• More coming soon!