128765132800

Names of 128765132800

• Cardinal: 128765132800 can be written as One hundred twenty-eight billion, seven hundred sixty-five million, one hundred thirty-two thousand, eight hundred.

Scientific notation

• Scientific notation: 1.287651328 × 10¹¹

Factors of 128765132800

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 27
• Sum of prime factors: 314

Divisors of 128765132800

• Number of divisors d(n): 150
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 256 307 320 400 512 614 640 800 1024 1228 1280 1535 1600 2048 2456 2560 3070 3200 4096 4912 5120 6140 6400 7675 8192 9824 10240 12280 12800 15350 16384 19648 20480 24560 25600 30700 32768 39296 40960 49120 51200 61400 65536 78592 81920 98240 102400 122800 131072 157184 163840 196480 204800 245600 262144 314368 327680 392960 409600 491200 524288 628736 655360 785920 819200 982400 1048576 1257472 1310720 1571840 1638400 1964800 2097152 2514944 2621440 3143680 3276800 3929600 4194304 5029888 5242880 6287360 6553600 7859200 8388608 10059776 10485760 12574720 13107200 15718400 16777216 20119552 20971520 25149440 26214400 31436800 40239104 41943040 50298880 52428800 62873600 80478208 83886080 100597760 104857600 125747200 160956416 201195520 209715200 251494400 321912832 402391040 419430400 502988800 643825664 804782080 1005977600 1287651328 1609564160 2011955200 2575302656 3219128320 4023910400 5150605312 6438256640 8047820800 12876513280 16095641600 25753026560 32191283200 64382566400 128765132800
• Sum of all divisors σ(n): 320377707188
• Sum of proper divisors (its aliquot sum) s(n): 191612574388
• 128765132800 is an abundant number, because the sum of its proper divisors (191612574388) is greater than itself. Its abundance is 62847441588

Bases of 128765132800

• Binary: 1110111111011000000000000000000000000₂
• Hexadecimal: 0x1DFB000000
• Base-36: 1N5JFOCG

Squares and roots of 128765132800

• 128765132800 squared (128765132800²) is 16580459425001635840000
• 128765132800 cubed (128765132800³) is 2134985059745347279154839552000000
• The square root of 128765132800 is 358838.5887833135
• The cube root of 128765132800 is 5049.7059960197

Scales and comparisons

• 128,765,132,800 seconds is equal to 4,094 years, 17 weeks, 2 days, 4 hours, 26 minutes, 40 seconds.
• To count from 1 to 128,765,132,800 would take you about eight thousand, one hundred eighty-eight 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 128765132800 cubic inches would be around 420.8 feet tall.

Recreational maths with 128765132800

• 128765132800 backwards is 008231567821
• The number of decimal digits it has is: 12
• The sum of 128765132800's digits is 43
• More coming soon!