20809702400

Names of 20809702400

• Cardinal: 20809702400 can be written as Twenty billion, eight hundred nine million, seven hundred two thousand, four hundred.

Scientific notation

• Scientific notation: 2.08097024 × 10¹⁰

Factors of 20809702400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 185

Divisors of 20809702400

• Number of divisors d(n): 198
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 71 80 100 107 128 142 160 200 214 256 284 320 355 400 428 512 535 568 640 710 800 856 1024 1070 1136 1280 1420 1600 1712 1775 2140 2272 2560 2675 2840 3200 3424 3550 4280 4544 5120 5350 5680 6400 6848 7100 7597 8560 9088 10700 11360 11449 12800 13696 14200 15194 17120 18176 21400 22720 22898 25600 27392 28400 30388 34240 36352 37985 42800 45440 45796 54784 56800 57245 60776 68480 72704 75970 85600 90880 91592 109568 113600 114490 121552 136960 151940 171200 181760 183184 189925 227200 228980 243104 273920 286225 303880 342400 363520 366368 379850 454400 457960 486208 547840 572450 607760 684800 732736 759700 812879 908800 915920 972416 1144900 1215520 1369600 1465472 1519400 1625758 1817600 1831840 1944832 2289800 2431040 2739200 2930944 3038800 3251516 3663680 3889664 4064395 4579600 4862080 5861888 6077600 6503032 7327360 7779328 8128790 9159200 9724160 11723776 12155200 13006064 14654720 16257580 18318400 19448320 20321975 24310400 26012128 29309440 32515160 36636800 38896640 40643950 48620800 52024256 58618880 65030320 73273600 81287900 97241600 104048512 130060640 146547200 162575800 194483200 208097024 260121280 293094400 325151600 416194048 520242560 650303200 832388096 1040485120 1300606400 2080970240 2601212800 4161940480 5202425600 10404851200 20809702400
• Sum of all divisors σ(n): 52802823528
• Sum of proper divisors (its aliquot sum) s(n): 31993121128
• 20809702400 is an abundant number, because the sum of its proper divisors (31993121128) is greater than itself. Its abundance is 11183418728

Bases of 20809702400

• Binary: 10011011000010110101101110000000000₂
• Hexadecimal: 0x4D85ADC00
• Base-36: 9K5K54W

Squares and roots of 20809702400

• 20809702400 squared (20809702400²) is 433043713976565760000
• 20809702400 cubed (20809702400³) is 9011510814043054039629824000000
• The square root of 20809702400 is 144255.6841167793
• The cube root of 20809702400 is 2750.5652788369

Scales and comparisons

• 20,809,702,400 seconds is equal to 661 years, 35 weeks, 4 days, 53 minutes, 20 seconds.
• To count from 1 to 20,809,702,400 would take you about one thousand, three hundred twenty-three 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 20809702400 cubic inches would be around 229.2 feet tall.

Recreational maths with 20809702400

• 20809702400 backwards is 00420790802
• 20809702400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20809702400's digits is 32
• More coming soon!