72991357495128

Names of 72991357495128

• Cardinal: 72991357495128 can be written as Seventy-two trillion, nine hundred ninety-one billion, three hundred fifty-seven million, four hundred ninety-five thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 7.2991357495128 × 10¹³

Factors of 72991357495128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 56246

Divisors of 72991357495128

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 36 72 2731 5462 8191 8193 10924 16382 16386 21848 24573 24579 32764 32772 45319 49146 49158 65528 65544 73719 90638 98292 98316 135957 147438 181276 196584 196632 271914 294876 362552 407871 543828 589752 815742 1087656 1631484 3262968 22369621 44739242 67108863 89478484 123766189 134217726 178956968 201326589 247532378 268435452 371207929 371298567 402653178 495064756 536870904 742415858 742597134 805306356 990129512 1113623787 1113895701 1484831716 1485194268 1610612712 2227247574 2227791402 2969663432 2970388536 3340871361 4454495148 4455582804 6681742722 8908990296 8911165608 13363485444 26726970888 1013768854099 2027537708198 3041306562297 4055075416396 6082613124594 8110150832792 9123919686891 12165226249188 18247839373782 24330452498376 36495678747564 72991357495128
• Sum of all divisors σ(n): 197785819545600
• Sum of proper divisors (its aliquot sum) s(n): 124794462050472
• 72991357495128 is an abundant number, because the sum of its proper divisors (124794462050472) is greater than itself. Its abundance is 51803104555344

Bases of 72991357495128

• Binary: 10000100110001010011111111011110110011101011000₂
• Hexadecimal: 0x42629FEF6758
• Base-36: PVFRLO6E0

Squares and roots of 72991357495128

• 72991357495128 squared (72991357495128²) is 5327738268981578462543736384
• 72991357495128 cubed (72991357495128³) is 388878848631708813627351971520788196337152
• The square root of 72991357495128 is 8543497.9660047909
• The cube root of 72991357495128 is 41791.7425855073

Scales and comparisons

• 72,991,357,495,128 seconds is equal to 2,320,899 years, 20 weeks, 2 days, 9 hours, 58 minutes, 48 seconds.
• To count from 1 to 72,991,357,495,128 would take you about five million, eight hundred two thousand, two hundred forty-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 72991357495128 cubic inches would be around 3482.6 feet tall.

Recreational maths with 72991357495128

• 72991357495128 backwards is 82159475319927
• 72991357495128 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 72991357495128's digits is 72
• More coming soon!