72121946472

Names of 72121946472

• Cardinal: 72121946472 can be written as Seventy-two billion, one hundred twenty-one million, nine hundred forty-six thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 7.2121946472 × 10¹⁰

Factors of 72121946472

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 33647

Divisors of 72121946472

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 36 72 173 346 519 692 1038 1384 1557 2076 3114 4152 6228 12456 29929 33469 59858 66938 89787 100407 119716 133876 179574 200814 239432 267752 269361 301221 359148 401628 538722 602442 718296 803256 1077444 1204884 2154888 2409768 5790137 11580274 17370411 23160548 34740822 46321096 52111233 69481644 104222466 138963288 208444932 416889864 1001693701 2003387402 3005081103 4006774804 6010162206 8013549608 9015243309 12020324412 18030486618 24040648824 36060973236 72121946472
• Sum of all divisors σ(n): 196471744950
• Sum of proper divisors (its aliquot sum) s(n): 124349798478
• 72121946472 is an abundant number, because the sum of its proper divisors (124349798478) is greater than itself. Its abundance is 52227852006

Bases of 72121946472

• Binary: 1000011001010110011011001000101101000₂
• Hexadecimal: 0x10CACD9168
• Base-36: X4RJM20

Squares and roots of 72121946472

• 72121946472 squared (72121946472²) is 5201575162910033246784
• 72121946472 cubed (72121946472³) is 375147725469482097576296014146048
• The square root of 72121946472 is 268555.2949990001
• The cube root of 72121946472 is 4162.5150147227

Scales and comparisons

• 72,121,946,472 seconds is equal to 2,293 years, 13 weeks, 1 day, 18 hours, 1 minute, 12 seconds.
• To count from 1 to 72,121,946,472 would take you about four thousand, five hundred eighty-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 72121946472 cubic inches would be around 346.9 feet tall.

Recreational maths with 72121946472

• 72121946472 backwards is 27464912127
• The number of decimal digits it has is: 11
• The sum of 72121946472's digits is 45
• More coming soon!