1901990138581836

Names of 1901990138581836

• Cardinal: 1901990138581836 can be written as One quadrillion, nine hundred one trillion, nine hundred ninety billion, one hundred thirty-eight million, five hundred eighty-one thousand, eight hundred thirty-six.

Scientific notation

• Scientific notation: 1.901990138581836 × 10¹⁵

Factors of 1901990138581836

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2699226

Divisors of 1901990138581836

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 9 12 18 36 157 314 471 628 942 1413 1884 2826 5652 131041 262082 393123 524164 786246 1179369 1572492 2358738 2568023 4717476 5136046 7704069 10272092 15408138 20573437 23112207 30816276 41146874 46224414 61720311 82293748 92448828 123440622 185160933 246881244 370321866 403179611 740643732 806359222 1209538833 1612718444 2419077666 3628616499 4838155332 7257232998 14514465996 336516301943 673032603886 1009548905829 1346065207772 2019097811658 3028646717487 4038195623316 6057293434974 12114586869948 52833059405051 105666118810102 158499178215153 211332237620204 316998356430306 475497534645459 633996712860612 950995069290918 1901990138581836
• Sum of all divisors σ(n): 4838470196493024
• Sum of proper divisors (its aliquot sum) s(n): 2936480057911188
• 1901990138581836 is an abundant number, because the sum of its proper divisors (2936480057911188) is greater than itself. Its abundance is 1034489919329352

Bases of 1901990138581836

• Binary: 110110000011101100110010110100100111001001101001100₂
• Hexadecimal: 0x6C1D99693934C
• Base-36: IQ767GKXN0

Squares and roots of 1901990138581836

• 1901990138581836 squared (1901990138581836²) is 3617566487262551712205269130896
• 1901990138581836 cubed (1901990138581836³) is 6880575784437506388012330156622688073692005056
• The square root of 1901990138581836 is 43611811.9158311973
• The cube root of 1901990138581836 is 123899.4619202485

Scales and comparisons

• 1,901,990,138,581,836 seconds is equal to 60,477,403 years, 8 weeks, 4 days, 2 hours, 30 minutes, 36 seconds.
• To count from 1 to 1,901,990,138,581,836 would take you about one hundred eighty-one million, four hundred thirty-two thousand, two hundred 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 1901990138581836 cubic inches would be around 10325 feet tall.

Recreational maths with 1901990138581836

• 1901990138581836 backwards is 6381858310991091
• The number of decimal digits it has is: 16
• The sum of 1901990138581836's digits is 72
• More coming soon!