18428928128

Names of 18428928128

• Cardinal: 18428928128 can be written as Eighteen billion, four hundred twenty-eight million, nine hundred twenty-eight thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8428928128 × 10¹⁰

Factors of 18428928128

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 86

Divisors of 18428928128

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 64 71 104 128 142 169 208 284 338 416 568 676 832 923 1136 1352 1664 1846 2197 2272 2704 3692 4394 4544 5041 5408 7384 8788 9088 10082 10816 11999 14768 17576 20164 21632 23998 28561 29536 35152 40328 47996 57122 59072 65533 70304 80656 95992 114244 118144 131066 140608 155987 161312 191984 228488 262132 281216 311974 322624 383968 456976 524264 623948 645248 767936 851929 913952 1048528 1247896 1535872 1703858 1827904 2027831 2097056 2495792 3407716 3655808 4055662 4194112 4991584 6815432 8111324 8388224 9983168 11075077 13630864 16222648 19966336 22150154 27261728 32445296 44300308 54523456 64890592 88600616 109046912 129781184 143976001 177201232 259562368 287952002 354402464 575904004 708804928 1151808008 1417609856 2303616016 4607232032 9214464064 18428928128
• Sum of all divisors σ(n): 40341339915
• Sum of proper divisors (its aliquot sum) s(n): 21912411787
• 18428928128 is an abundant number, because the sum of its proper divisors (21912411787) is greater than itself. Its abundance is 3483483659

Bases of 18428928128

• Binary: 10001001010011100110010000010000000₂
• Hexadecimal: 0x44A732080
• Base-36: 8GS3VY8

Squares and roots of 18428928128

• 18428928128 squared (18428928128²) is 339625391946989584384
• 18428928128 cubed (18428928128³) is 6258931938634901036577327153152
• The square root of 18428928128 is 135753.1882793181
• The cube root of 18428928128 is 2641.3950447551

Scales and comparisons

• 18,428,928,128 seconds is equal to 585 years, 51 weeks, 18 hours, 42 minutes, 8 seconds.
• To count from 1 to 18,428,928,128 would take you about one thousand, one hundred seventy-one 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 18428928128 cubic inches would be around 220.1 feet tall.

Recreational maths with 18428928128

• 18428928128 backwards is 82182982481
• The number of decimal digits it has is: 11
• The sum of 18428928128's digits is 53
• More coming soon!