161991363120

Names of 161991363120

• Cardinal: 161991363120 can be written as One hundred sixty-one billion, nine hundred ninety-one million, three hundred sixty-three thousand, one hundred twenty.

Scientific notation

• Scientific notation: 1.6199136312 × 10¹¹

Factors of 161991363120

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 10197

Divisors of 161991363120

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 191 240 367 382 573 734 764 955 1101 1146 1468 1528 1835 1910 2202 2292 2865 2936 3056 3670 3820 4404 4584 5505 5730 5872 7340 7640 8808 9168 9629 11010 11460 14680 15280 17616 19258 22020 22920 28887 29360 38516 44040 45840 48145 57774 70097 77032 88080 96290 115548 140194 144435 154064 192580 210291 231096 280388 288870 350485 385160 420582 462192 560776 577740 700970 770320 841164 1051455 1121552 1155480 1401940 1682328 1839139 2102910 2310960 2803880 3364656 3533843 3678278 4205820 5517417 5607760 7067686 7356556 8411640 9195695 10601529 11034834 14135372 14713112 16823280 17669215 18391390 21203058 22069668 27587085 28270744 29426224 35338430 36782780 42406116 44139336 53007645 55174170 56541488 70676860 73565560 84812232 88278672 106015290 110348340 141353720 147131120 169624464 212030580 220696680 282707440 424061160 441393360 674964013 848122320 1349928026 2024892039 2699856052 3374820065 4049784078 5399712104 6749640130 8099568156 10124460195 10799424208 13499280260 16199136312 20248920390 26998560520 32398272624 40497840780 53997121040 80995681560 161991363120
• Sum of all divisors σ(n): 506230456320
• Sum of proper divisors (its aliquot sum) s(n): 344239093200
• 161991363120 is an abundant number, because the sum of its proper divisors (344239093200) is greater than itself. Its abundance is 182247730080

Bases of 161991363120

• Binary: 10010110110111011100000000101000110000₂
• Hexadecimal: 0x25B7700A30
• Base-36: 22F1H3QO

Squares and roots of 161991363120

• 161991363120 squared (161991363120²) is 26241201725475696134400
• 161991363120 cubed (161991363120³) is 4250848037416704047242370723328000
• The square root of 161991363120 is 402481.5065565125
• The cube root of 161991363120 is 5451.2648986727

Scales and comparisons

• 161,991,363,120 seconds is equal to 5,150 years, 42 weeks, 6 days, 52 minutes.
• To count from 1 to 161,991,363,120 would take you about ten thousand, three hundred 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 161991363120 cubic inches would be around 454.3 feet tall.

Recreational maths with 161991363120

• 161991363120 backwards is 021363199161
• The number of decimal digits it has is: 12
• The sum of 161991363120's digits is 42
• More coming soon!