72628209920

Names of 72628209920

• Cardinal: 72628209920 can be written as Seventy-two billion, six hundred twenty-eight million, two hundred nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 7.262820992 × 10¹⁰

Factors of 72628209920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 400

Divisors of 72628209920

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 128 140 160 163 223 224 256 280 320 326 446 448 560 640 652 815 892 896 1115 1120 1141 1280 1304 1561 1630 1784 1792 2230 2240 2282 2608 3122 3260 3568 4460 4480 4564 5216 5705 6244 6520 7136 7805 8920 8960 9128 10432 11410 12488 13040 14272 15610 17840 18256 20864 22820 24976 26080 28544 31220 35680 36349 36512 41728 45640 49729 49952 52160 57088 62440 71360 72698 73024 91280 99458 99904 104320 124880 142720 145396 146048 181745 182560 198916 199808 208640 248645 249760 254443 285440 290792 292096 348103 363490 365120 397832 399616 497290 499520 508886 581584 696206 726980 730240 795664 994580 999040 1017772 1163168 1272215 1392412 1453960 1460480 1591328 1740515 1989160 1998080 2035544 2326336 2544430 2784824 2907920 3182656 3481030 3978320 4071088 4652672 5088860 5569648 5815840 6365312 6962060 7956640 8105827 8142176 9305344 10177720 11139296 11631680 12730624 13924120 15913280 16211654 16284352 20355440 22278592 23263360 27848240 31826560 32423308 32568704 40529135 40710880 44557184 46526720 55696480 56740789 63653120 64846616 65137408 81058270 81421760 89114368 111392960 113481578 129693232 162116540 162843520 222785920 226963156 259386464 283703945 324233080 325687040 445571840 453926312 518772928 567407890 648466160 907852624 1037545856 1134815780 1296932320 1815705248 2075091712 2269631560 2593864640 3631410496 4539263120 5187729280 7262820992 9078526240 10375458560 14525641984 18157052480 36314104960 72628209920
• Sum of all divisors σ(n): 200940538176
• Sum of proper divisors (its aliquot sum) s(n): 128312328256
• 72628209920 is an abundant number, because the sum of its proper divisors (128312328256) is greater than itself. Its abundance is 55684118336

Bases of 72628209920

• Binary: 1000011101000111110101000100100000000₂
• Hexadecimal: 0x10E8FA8900
• Base-36: XD4YLFK

Squares and roots of 72628209920

• 72628209920 squared (72628209920²) is 5274856876183586406400
• 72628209920 cubed (72628209920³) is 383103412501416961982477631488000
• The square root of 72628209920 is 269496.2150383563
• The cube root of 72628209920 is 4172.2319715039

Scales and comparisons

• 72,628,209,920 seconds is equal to 2,309 years, 18 weeks, 2 days, 6 hours, 45 minutes, 20 seconds.
• To count from 1 to 72,628,209,920 would take you about four thousand, six hundred eighteen 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 72628209920 cubic inches would be around 347.7 feet tall.

Recreational maths with 72628209920

• 72628209920 backwards is 02990282627
• The number of decimal digits it has is: 11
• The sum of 72628209920's digits is 47
• More coming soon!