402168156391221

Names of 402168156391221

• Cardinal: 402168156391221 can be written as Four hundred two trillion, one hundred sixty-eight billion, one hundred fifty-six million, three hundred ninety-one thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 4.02168156391221 × 10¹⁴

Factors of 402168156391221

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 7311

Divisors of 402168156391221

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 11 33 73 219 587 803 1761 2409 5329 6457 6637 15987 19371 19911 42851 58619 73007 128553 175857 219021 344569 471361 484501 1033707 1414083 1453503 3128123 3790259 3895919 5329511 9384369 11370777 11687757 15988533 25153537 34409353 35368573 42855109 75460611 103228059 106105719 128565327 276688907 284402087 389054303 830066721 853206261 1167162909 1836208201 2286904453 3128422957 5508624603 6860713359 9385268871 20198290211 20761352351 25155948983 60594870633 62284057053 75467846949 166944025069 228374875861 500832075207 685124627583 1836384275759 5509152827277 12186913830037 36560741490111 134056052130407 402168156391221
• Sum of all divisors σ(n): 594196567339104
• Sum of proper divisors (its aliquot sum) s(n): 192028410947883
• 402168156391221 is a deficient number, because the sum of its proper divisors (192028410947883) is less than itself. Its deficiency is 210139745443338

Bases of 402168156391221

• Binary: 1011011011100010100010010000110100000011100110101₂
• Hexadecimal: 0x16DC5121A0735
• Base-36: 3YK1I0N31X

Squares and roots of 402168156391221

• 402168156391221 squared (402168156391221²) is 161739226015113592470005870841
• 402168156391221 cubed (402168156391221³) is 65046366342641243355056501145007305992286861
• The square root of 402168156391221 is 20054130.6565809779
• The cube root of 402168156391221 is 73813.5161036247

Scales and comparisons

• 402,168,156,391,221 seconds is equal to 12,787,703 years, 20 weeks, 7 hours, 20 minutes, 21 seconds.
• To count from 1 to 402,168,156,391,221 would take you about thirty-one million, nine hundred sixty-nine thousand, two hundred fifty-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 402168156391221 cubic inches would be around 6151.1 feet tall.

Recreational maths with 402168156391221

• 402168156391221 backwards is 122193651861204
• The number of decimal digits it has is: 15
• The sum of 402168156391221's digits is 51
• More coming soon!