177942161137911921

Names of 177942161137911921

• Cardinal: 177942161137911921 can be written as One hundred seventy-seven quadrillion, nine hundred forty-two trillion, one hundred sixty-one billion, one hundred thirty-seven million, nine hundred eleven thousand, nine hundred twenty-one.

Scientific notation

• Scientific notation: 1.77942161137911921 × 10¹⁷

Factors of 177942161137911921

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 146351

Divisors of 177942161137911921

• Number of divisors d(n): 45
• Complete list of divisors:
  1 3 9 31 93 279 961 2883 8649 29791 89373 146317 268119 438951 923521 1316853 2770563 4535827 8311689 13607481 40822443 140610637 421831911 1265495733 4358929747 13076789241 21408664489 39230367723 64225993467 135126822157 192677980401 405380466471 663668599159 1216141399413 1991005797477 5973017392431 20573726573929 61721179721787 185163539165361 637785523791799 1913356571375397 5740069714126191 19771351237545769 59314053712637307 177942161137911921
• Sum of all divisors σ(n): 265596957563263755
• Sum of proper divisors (its aliquot sum) s(n): 87654796425351834
• 177942161137911921 is a deficient number, because the sum of its proper divisors (87654796425351834) is less than itself. Its deficiency is 90287364712560087

Bases of 177942161137911921

• Binary: 1001111000001011010111001111101001001100001100100001110001₂
• Hexadecimal: 0x2782D73E930C871
• Base-36: 1CO38CBF26I9

Squares and roots of 177942161137911921

• 177942161137911921 squared (177942161137911921²) is 31663412710430611519822259953910241
• 177942161137911921 cubed (177942161137911921³) is 5634256086695652326699969644005966132375933797882961
• 177942161137911921 is a perfect square number. Its square root is 421831911
• The cube root of 177942161137911921 is 562461.6980146405

Scales and comparisons

• 177,942,161,137,911,921 seconds is equal to 5,658,010,312 years, 49 weeks, 25 minutes, 21 seconds.
• To count from 1 to 177,942,161,137,911,921 would take you about sixteen billion, nine hundred seventy-four million, thirty thousand, nine hundred thirty-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 177942161137911921 cubic inches would be around 46871.8 feet tall.

Recreational maths with 177942161137911921

• 177942161137911921 backwards is 129119731161249771
• The number of decimal digits it has is: 18
• The sum of 177942161137911921's digits is 72
• More coming soon!