18468221128

Names of 18468221128

• Cardinal: 18468221128 can be written as Eighteen billion, four hundred sixty-eight million, two hundred twenty-one thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8468221128 × 10¹⁰

Factors of 18468221128

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 159

Divisors of 18468221128

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 8 14 23 28 46 49 56 92 98 127 161 184 196 254 322 392 508 644 889 1016 1127 1288 1778 2254 2921 3556 4508 5842 6223 7112 9016 11684 12446 16129 20447 23368 24892 32258 40894 49784 64516 81788 112903 129032 143129 163576 225806 286258 370967 451612 572516 741934 790321 903224 1145032 1483868 1580642 2048383 2596769 2967736 3161284 4096766 5193538 6322568 8193532 10387076 14338681 16387064 18177383 20774152 28677362 36354766 47112809 57354724 72709532 94225618 100370767 114709448 145419064 188451236 200741534 329789663 376902472 401483068 659579326 802966136 1319158652 2308527641 2638317304 4617055282 9234110564 18468221128
• Sum of all divisors σ(n): 42366412800
• Sum of proper divisors (its aliquot sum) s(n): 23898191672
• 18468221128 is an abundant number, because the sum of its proper divisors (23898191672) is greater than itself. Its abundance is 5429970544

Bases of 18468221128

• Binary: 10001001100110010101011000011001000₂
• Hexadecimal: 0x44CCAB0C8
• Base-36: 8HFI2MG

Squares and roots of 18468221128

• 18468221128 squared (18468221128²) is 341075191632705592384
• 18468221128 cubed (18468221128³) is 6299052060347782237069944689152
• The square root of 18468221128 is 135897.8334190799
• The cube root of 18468221128 is 2643.2709841909

Scales and comparisons

• 18,468,221,128 seconds is equal to 587 years, 12 weeks, 13 hours, 25 minutes, 28 seconds.
• To count from 1 to 18,468,221,128 would take you about one thousand, one hundred seventy-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 18468221128 cubic inches would be around 220.3 feet tall.

Recreational maths with 18468221128

• 18468221128 backwards is 82112286481
• The number of decimal digits it has is: 11
• The sum of 18468221128's digits is 43
• More coming soon!