21459110720

Names of 21459110720

• Cardinal: 21459110720 can be written as Twenty-one billion, four hundred fifty-nine million, one hundred ten thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.145911072 × 10¹⁰

Factors of 21459110720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 457

Divisors of 21459110720

• Number of divisors d(n): 126
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 32 38 40 64 76 80 95 152 160 190 304 320 361 380 431 608 722 760 862 1216 1444 1520 1724 1805 2155 2888 3040 3448 3610 4310 5776 6080 6896 7220 8189 8620 11552 13792 14440 16378 17240 23104 27584 28880 32756 34480 40945 57760 65512 68960 81890 115520 131024 137920 155591 163780 185761 262048 311182 327560 371522 524096 622364 655120 743044 777955 928805 1244728 1310240 1486088 1555910 1857610 2489456 2620480 2972176 3111820 3529459 3715220 4978912 5944352 6223640 7058918 7430440 9957824 11888704 12447280 14117836 14860880 17647295 24894560 28235672 29721760 35294590 49789120 56471344 59443520 67059721 70589180 112942688 134119442 141178360 225885376 268238884 282356720 335298605 536477768 564713440 670597210 1072955536 1129426880 1341194420 2145911072 2682388840 4291822144 5364777680 10729555360 21459110720
• Sum of all divisors σ(n): 54055924146
• Sum of proper divisors (its aliquot sum) s(n): 32596813426
• 21459110720 is an abundant number, because the sum of its proper divisors (32596813426) is greater than itself. Its abundance is 11137702706

Bases of 21459110720

• Binary: 10011111111000100000000101101000000₂
• Hexadecimal: 0x4FF100B40
• Base-36: 9UW77SW

Squares and roots of 21459110720

• 21459110720 squared (21459110720²) is 460493432893218918400
• 21459110720 cubed (21459110720³) is 9881779562288474707144245248000
• The square root of 21459110720 is 146489.2853419663
• The cube root of 21459110720 is 2778.8849935635

Scales and comparisons

• 21,459,110,720 seconds is equal to 682 years, 17 weeks, 2 days, 8 hours, 5 minutes, 20 seconds.
• To count from 1 to 21,459,110,720 would take you about one thousand, three hundred sixty-four 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 21459110720 cubic inches would be around 231.6 feet tall.

Recreational maths with 21459110720

• 21459110720 backwards is 02701195412
• 21459110720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21459110720's digits is 32
• More coming soon!