16451289920

Names of 16451289920

• Cardinal: 16451289920 can be written as Sixteen billion, four hundred fifty-one million, two hundred eighty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.645128992 × 10¹⁰

Factors of 16451289920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3954657

Divisors of 16451289920

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 130 160 208 260 320 416 520 832 1040 2080 4160 3954637 7909274 15818548 19773185 31637096 39546370 51410281 63274192 79092740 102820562 126548384 158185480 205641124 253096768 257051405 316370960 411282248 514102810 632741920 822564496 1028205620 1265483840 1645128992 2056411240 3290257984 4112822480 8225644960 16451289920
• Sum of all divisors σ(n): 42188078184
• Sum of proper divisors (its aliquot sum) s(n): 25736788264
• 16451289920 is an abundant number, because the sum of its proper divisors (25736788264) is greater than itself. Its abundance is 9285498344

Bases of 16451289920

• Binary: 1111010100100100101100001101000000₂
• Hexadecimal: 0x3D492C340
• Base-36: 7K2O8JK

Squares and roots of 16451289920

• 16451289920 squared (16451289920²) is 270644940031893606400
• 16451289920 cubed (16451289920³) is 4452458373845695765480767488000
• The square root of 16451289920 is 128262.5819169409
• The cube root of 16451289920 is 2543.3140200471

Scales and comparisons

• 16,451,289,920 seconds is equal to 523 years, 5 weeks, 1 day, 10 hours, 45 minutes, 20 seconds.
• To count from 1 to 16,451,289,920 would take you about one thousand and forty-six 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 16451289920 cubic inches would be around 211.9 feet tall.

Recreational maths with 16451289920

• 16451289920 backwards is 02998215461
• The number of decimal digits it has is: 11
• The sum of 16451289920's digits is 47
• More coming soon!