155713374728991421

Names of 155713374728991421

• Cardinal: 155713374728991421 can be written as One hundred fifty-five quadrillion, seven hundred thirteen trillion, three hundred seventy-four billion, seven hundred twenty-eight million, nine hundred ninety-one thousand, four hundred twenty-one.

Scientific notation

• Scientific notation: 1.55713374728991421 × 10¹⁷

Factors of 155713374728991421

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 526289

Divisors of 155713374728991421

• Number of divisors d(n): 48
• Complete list of divisors:
  1 61 97 757 1087 3721 5917 46177 66307 73429 105439 360937 524287 822859 2816797 4044727 4479169 6431779 31981507 50194399 50855839 79817323 273229309 392338519 396885259 569899969 1950871927 3061858339 3102206179 4868856703 24210000799 34763898109 38497870123 55280296993 189234576919 297000258883 431414276533 1476810048739 2120597784649 2348370077503 3372098116573 26316270868513 41847184823701 143250574727683 205697985110953 1605292522979293 2552678274245761 155713374728991421
• Sum of all divisors σ(n): 160298860667731968
• Sum of proper divisors (its aliquot sum) s(n): 4585485938740547
• 155713374728991421 is a deficient number, because the sum of its proper divisors (4585485938740547) is less than itself. Its deficiency is 151127888790250874

Bases of 155713374728991421

• Binary: 1000101001001101000111110101000011011111111011001010111101₂
• Hexadecimal: 0x229347D437FB2BD
• Base-36: 16L7S8TDG2PP

Squares and roots of 155713374728991421

• 155713374728991421 squared (155713374728991421²) is 24246655069491304093357399891599241
• 155713374728991421 cubed (155713374728991421³) is 3775528486760298957642011243147879679791310659111461
• The square root of 155713374728991421 is 394605340.4719599345
• The cube root of 155713374728991421 is 537991.3657548819

Scales and comparisons

• 155,713,374,728,991,421 seconds is equal to 4,951,203,663 years, 15 weeks, 9 hours, 37 minutes, 1 second.
• To count from 1 to 155,713,374,728,991,421 would take you about fourteen billion, eight hundred fifty-three million, six hundred ten thousand, nine hundred eighty-nine 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 155713374728991421 cubic inches would be around 44832.6 feet tall.

Recreational maths with 155713374728991421

• 155713374728991421 backwards is 124199827473317551
• The number of decimal digits it has is: 18
• The sum of 155713374728991421's digits is 79
• More coming soon!