121851538242

Names of 121851538242

• Cardinal: 121851538242 can be written as One hundred twenty-one billion, eight hundred fifty-one million, five hundred thirty-eight thousand, two hundred forty-two.

Scientific notation

• Scientific notation: 1.21851538242 × 10¹¹

Factors of 121851538242

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6088

Divisors of 121851538242

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 14 21 31 42 62 73 93 146 186 217 219 223 434 438 446 511 651 669 1022 1302 1338 1533 1561 2263 3066 3122 4526 4683 5749 6789 6913 9366 11498 13578 13826 15841 16279 17247 20739 31682 32558 34494 40243 41478 47523 48391 48837 80486 95046 96782 97674 113953 120729 145173 178219 227906 241458 290346 341859 356438 419677 504649 534657 683718 839354 1009298 1069314 1247533 1259031 1282027 1513947 2495066 2518062 2564054 2937739 3027894 3532543 3742599 3846081 5875478 7065086 7485198 7692162 8813217 8974189 10597629 13009987 17626434 17948378 21195258 26019974 26922567 39029961 39742837 53845134 78059922 79485674 91069909 93587971 119228511 182139818 187175942 238457022 273209727 278199859 280763913 546419454 556399718 561527826 655115797 834599577 1310231594 1669199154 1965347391 2901227101 3930694782 5802454202 8703681303 17407362606 20308589707 40617179414 60925769121 121851538242
• Sum of all divisors σ(n): 292798464000
• Sum of proper divisors (its aliquot sum) s(n): 170946925758
• 121851538242 is an abundant number, because the sum of its proper divisors (170946925758) is greater than itself. Its abundance is 49095387516

Bases of 121851538242

• Binary: 1110001011110111010101110101101000010₂
• Hexadecimal: 0x1C5EEAEB42
• Base-36: 1JZ79CN6

Squares and roots of 121851538242

• 121851538242 squared (121851538242²) is 14847797371941588450564
• 121851538242 cubed (121851538242³) is 1809226949276607562874124772468488
• The square root of 121851538242 is 349072.3968491351
• The cube root of 121851538242 is 4957.6630380309

Scales and comparisons

• 121,851,538,242 seconds is equal to 3,874 years, 26 weeks, 17 hours, 30 minutes, 42 seconds.
• To count from 1 to 121,851,538,242 would take you about seven thousand, seven hundred forty-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 121851538242 cubic inches would be around 413.1 feet tall.

Recreational maths with 121851538242

• 121851538242 backwards is 242835158121
• 121851538242 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 121851538242's digits is 42
• More coming soon!