21369261815772948

Names of 21369261815772948

• Cardinal: 21369261815772948 can be written as Twenty-one quadrillion, three hundred sixty-nine trillion, two hundred sixty-one billion, eight hundred fifteen million, seven hundred seventy-two thousand, nine hundred forty-eight.

Scientific notation

• Scientific notation: 2.1369261815772948 × 10¹⁶

Factors of 21369261815772948

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 925524

Divisors of 21369261815772948

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 7 9 11 12 14 18 21 22 27 28 33 36 42 44 54 63 66 77 81 84 99 108 126 132 154 162 189 198 231 252 297 308 324 378 396 462 567 594 693 756 891 924 1134 1188 1386 1782 2079 2268 2772 3564 4158 6237 8316 12474 24948 925501 1851002 2776503 3702004 5553006 6478507 8329509 10180511 11106012 12957014 16659018 19435521 20361022 24988527 25914028 30541533 33318036 38871042 40722044 49977054 58306563 61083066 71263577 74965581 77742084 91624599 99954108 116613126 122166132 142527154 149931162 174919689 183249198 213790731 233226252 274873797 285054308 299862324 349839378 366498396 427581462 524759067 549747594 641372193 699678756 824621391 855162924 1049518134 1099495188 1282744386 1649242782 1924116579 2099036268 2565488772 3298485564 3848233158 5772349737 7696466316 11544699474 23089398948 856552101001 1713104202002 2569656303003 3426208404004 5139312606006 5995864707007 7708968909009 9422073111011 10278625212012 11991729414014 15417937818018 17987594121021 18844146222022 23126906727027 23983458828028 28266219333033 30835875636036 35975188242042 37688292444044 46253813454054 53962782363063 56532438666066 65954511777077 69380720181081 71950376484084 84798657999099 92507626908108 107925564726126 113064877332132 131909023554154 138761440362162 161888347089189 169597315998198 197863535331231 215851129452252 254395973997297 263818047108308 277522880724324 323776694178378 339194631996396 395727070662462 485665041267567 508791947994594 593590605993693 647553388356756 763187921991891 791454141324924 971330082535134 1017583895989188 1187181211987386 1526375843983782 1780771817981079 1942660165070268 2374362423974772 3052751687967564 3561543635962158 5342315453943237 7123087271924316 10684630907886474 21369261815772948
• Sum of all divisors σ(n): 69648039691011936
• Sum of proper divisors (its aliquot sum) s(n): 48278777875238988
• 21369261815772948 is an abundant number, because the sum of its proper divisors (48278777875238988) is greater than itself. Its abundance is 26909516059466040

Bases of 21369261815772948

• Binary: 1001011111010110011101011111011101001000011011100010100₂
• Hexadecimal: 0x4BEB3AFBA43714
• Base-36: 5UERRCR4D90

Squares and roots of 21369261815772948

• 21369261815772948 squared (21369261815772948²) is 456645350551051750588358688610704
• 21369261815772948 cubed (21369261815772948³) is 9758174052880842492354451456565963059112026435392
• The square root of 21369261815772948 is 146182289.6789243345
• The cube root of 21369261815772948 is 277500.1187815327

Scales and comparisons

• 21,369,261,815,772,948 seconds is equal to 679,476,426 years, 14 weeks, 2 days, 55 minutes, 48 seconds.
• To count from 1 to 21,369,261,815,772,948 would take you about two billion, thirty-eight million, four hundred twenty-nine thousand, two hundred seventy-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 21369261815772948 cubic inches would be around 23125 feet tall.

Recreational maths with 21369261815772948

• 21369261815772948 backwards is 84927751816296312
• 21369261815772948 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21369261815772948's digits is 81
• More coming soon!