123720890942

Names of 123720890942

• Cardinal: 123720890942 can be written as One hundred twenty-three billion, seven hundred twenty million, eight hundred ninety thousand, nine hundred forty-two.

Scientific notation

• Scientific notation: 1.23720890942 × 10¹¹

Factors of 123720890942

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 175

Divisors of 123720890942

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 11 22 31 62 121 131 242 262 341 682 961 1441 1922 2882 3751 4061 7502 8122 10571 15851 17161 21142 29791 31702 34322 44671 59582 89342 116281 125891 188771 232562 251782 327701 377542 491381 531991 655402 982762 1063982 1384801 2076481 2769602 3604711 3902621 4152962 5851901 7209422 7805242 11703802 15232811 16491721 30465622 32983442 42928831 64370911 85857662 128741822 181408931 362817862 472217141 511243351 944434282 1022486702 1995498241 3990996482 5623676861 11247353722 61860445471 123720890942
• Sum of all divisors σ(n): 212406737088
• Sum of proper divisors (its aliquot sum) s(n): 88685846146
• 123720890942 is a deficient number, because the sum of its proper divisors (88685846146) is less than itself. Its deficiency is 35035044796

Bases of 123720890942

• Binary: 1110011001110010101101111101000111110₂
• Hexadecimal: 0x1CCE56FA3E
• Base-36: 1KU482F2

Squares and roots of 123720890942

• 123720890942 squared (123720890942²) is 15306858855482257647364
• 123720890942 cubed (123720890942³) is 1893778215123707337205466937776888
• The square root of 123720890942 is 351739.8057399817
• The cube root of 123720890942 is 4982.8867064217

Scales and comparisons

• 123,720,890,942 seconds is equal to 3,933 years, 48 weeks, 6 days, 18 hours, 9 minutes, 2 seconds.
• To count from 1 to 123,720,890,942 would take you about seven thousand, eight hundred sixty-seven 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 123720890942 cubic inches would be around 415.2 feet tall.

Recreational maths with 123720890942

• 123720890942 backwards is 249098027321
• The number of decimal digits it has is: 12
• The sum of 123720890942's digits is 47
• More coming soon!