21215708800

Names of 21215708800

• Cardinal: 21215708800 can be written as Twenty-one billion, two hundred fifteen million, seven hundred eight thousand, eight hundred.

Scientific notation

• Scientific notation: 2.12157088 × 10¹⁰

Factors of 21215708800

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 755

Divisors of 21215708800

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 5 8 10 11 13 16 20 22 25 26 32 40 44 50 52 55 64 65 71 80 88 100 104 110 128 130 142 143 160 176 200 208 220 260 275 284 286 320 325 352 355 400 416 440 520 550 568 572 640 650 653 704 710 715 781 800 832 880 923 1040 1100 1136 1144 1300 1306 1408 1420 1430 1562 1600 1664 1760 1775 1846 2080 2200 2272 2288 2600 2612 2840 2860 3124 3200 3265 3520 3550 3575 3692 3905 4160 4400 4544 4576 4615 5200 5224 5680 5720 6248 6530 7040 7100 7150 7183 7384 7810 8320 8489 8800 9088 9152 9230 10153 10400 10448 11360 11440 12496 13060 14200 14300 14366 14768 15620 16325 16978 17600 18304 18460 19525 20306 20800 20896 22720 22880 23075 24992 26120 28400 28600 28732 29536 31240 32650 33956 35200 35915 36920 39050 40612 41600 41792 42445 45440 45760 46150 46363 49984 50765 52240 56800 57200 57464 59072 62480 65300 67912 71830 73840 78100 81224 83584 84890 91520 92300 92726 93379 99968 101530 104480 113600 114400 114928 118144 124960 130600 135824 143660 147680 156200 162448 169780 179575 184600 185452 186758 203060 208960 212225 227200 228800 229856 231815 249920 253825 261200 271648 287320 295360 312400 324896 339560 359150 369200 370904 373516 406120 417920 424450 457600 459712 463630 466895 499840 507650 509993 522400 543296 574640 590720 602719 624800 649792 679120 718300 738400 741808 747032 812240 848900 919424 927260 933790 1015300 1019986 1044800 1086592 1149280 1159075 1205438 1249600 1299584 1358240 1436600 1476800 1483616 1494064 1624480 1697800 1854520 1867580 2030600 2039972 2089600 2298560 2318150 2334475 2410876 2499200 2549965 2716480 2873200 2953600 2967232 2988128 3013595 3248960 3395600 3709040 3735160 4061200 4079944 4597120 4636300 4668950 4821752 5099930 5432960 5746400 5934464 5976256 6027190 6497920 6629909 6791200 7418080 7470320 8122400 8159888 9272600 9337900 9643504 10199860 11492800 11952512 12054380 12749825 13259818 13582400 14836160 14940640 15067975 16244800 16319776 18545200 18675800 19287008 20399720 22985600 24108760 25499650 26519636 27164800 29672320 29881280 30135950 32489600 32639552 33149545 37090400 37351600 38574016 40799440 48217520 50999300 53039272 59762560 60271900 65279104 66299090 74180800 74703200 77148032 81598880 96435040 101998600 106078544 120543800 132598180 148361600 149406400 163197760 165747725 192870080 203997200 212157088 241087600 265196360 298812800 326395520 331495450 385740160 407994400 424314176 482175200 530392720 662990900 815988800 848628352 964350400 1060785440 1325981800 1631977600 1928700800 2121570880 2651963600 4243141760 5303927200 10607854400 21215708800
• Sum of all divisors σ(n): 62534747520
• Sum of proper divisors (its aliquot sum) s(n): 41319038720
• 21215708800 is an abundant number, because the sum of its proper divisors (41319038720) is greater than itself. Its abundance is 20103329920

Bases of 21215708800

• Binary: 10011110000100011100000011010000000₂
• Hexadecimal: 0x4F08E0680
• Base-36: 9QVA9OG

Squares and roots of 21215708800

• 21215708800 squared (21215708800²) is 450106299886397440000
• 21215708800 cubed (21215708800³) is 9549324187435281168105472000000
• The square root of 21215708800 is 145656.1320370687
• The cube root of 21215708800 is 2768.3384318953

Scales and comparisons

• 21,215,708,800 seconds is equal to 674 years, 30 weeks, 6 days, 4 hours, 26 minutes, 40 seconds.
• To count from 1 to 21,215,708,800 would take you about one thousand, three hundred forty-nine 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 21215708800 cubic inches would be around 230.7 feet tall.

Recreational maths with 21215708800

• 21215708800 backwards is 00880751212
• The number of decimal digits it has is: 11
• The sum of 21215708800's digits is 34
• More coming soon!