398385555334323921

Names of 398385555334323921

• Cardinal: 398385555334323921 can be written as Three hundred ninety-eight quadrillion, three hundred eighty-five trillion, five hundred fifty-five billion, three hundred thirty-four million, three hundred twenty-three thousand, nine hundred twenty-one.

Scientific notation

• Scientific notation: 3.98385555334323921 × 10¹⁷

Factors of 398385555334323921

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 770692

Divisors of 398385555334323921

• Number of divisors d(n): 135
• Complete list of divisors:
  1 3 7 9 13 21 27 39 49 63 81 91 117 147 169 189 273 351 441 507 567 637 819 1053 1183 1323 1521 1911 2457 3549 3969 4563 5733 7371 8281 10647 13689 17199 24843 31941 51597 74529 95823 223587 670761 770669 2312007 5394683 6936021 10018697 16184049 20808063 30056091 37762781 48552147 62424189 70130879 90168273 113288343 130243061 145656441 210392637 270504819 339865029 390729183 436969323 490916153 631177911 811514457 911701427 1019595087 1172187549 1472748459 1893533733 2735104281 3058785261 3516562647 4418245377 5680601199 6381909989 8205312843 10549687941 13254736131 19145729967 24615938529 39764208393 57437189901 73847815587 172311569703 516934709109 593930707561 1781792122683 4157514952927 5345376368049 7721099198293 12472544858781 16036129104147 23163297594879 29102604670489 37417634576343 48108387312441 54047694388051 69489892784637 87307814011467 100374289577809 112252903729029 162143083164153 208469678353911 261923442034401 301122868733427 336758711187087 378333860716357 486429249492459 625409035061733 702620027044663 785770326103203 903368606200281 1135001582149071 1459287748477377 2107860081133989 2357310978309609 2710105818600843 3405004746447213 4377863245432131 4918340189312641 6323580243401967 8130317455802529 10215014239341639 14755020567937923 18970740730205901 30645042718024917 44265061703813769 56912222190617703 132795185111441307 398385555334323921
• Sum of all divisors σ(n): 749631209180734881
• Sum of proper divisors (its aliquot sum) s(n): 351245653846410960
• 398385555334323921 is a deficient number, because the sum of its proper divisors (351245653846410960) is less than itself. Its deficiency is 47139901487912961

Bases of 398385555334323921

• Binary: 10110000111010110011000110101000101010110010101111011010001₂
• Hexadecimal: 0x587598D45595ED1
• Base-36: 30YNW5K3U029

Squares and roots of 398385555334323921

• 398385555334323921 squared (398385555334323921²) is 158711050699037666746494794152814241
• 398385555334323921 cubed (398385555334323921³) is 63228190070430159608439436546559108799945485235758961
• 398385555334323921 is a perfect square number. Its square root is 631177911
• The cube root of 398385555334323921 is 735813.6855938629

Scales and comparisons

• 398,385,555,334,323,921 seconds is equal to 12,667,428,372 years, 10 weeks, 2 days, 14 hours, 25 minutes, 21 seconds.
• To count from 1 to 398,385,555,334,323,921 would take you about thirty-eight billion, two million, two hundred eighty-five thousand, one hundred sixteen 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 398385555334323921 cubic inches would be around 61317.8 feet tall.

Recreational maths with 398385555334323921

• 398385555334323921 backwards is 129323433555583893
• 398385555334323921 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 398385555334323921's digits is 81
• More coming soon!