13897281321

Names of 13897281321

• Cardinal: 13897281321 can be written as Thirteen billion, eight hundred ninety-seven million, two hundred eighty-one thousand, three hundred twenty-one.

Scientific notation

• Scientific notation: 1.3897281321 × 10¹⁰

Factors of 13897281321

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 8662

Divisors of 13897281321

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 7 9 11 19 21 27 33 41 57 63 77 99 123 133 171 189 209 231 287 297 369 399 451 513 627 693 779 861 1107 1197 1353 1463 1881 2079 2337 2583 3157 3591 4059 4389 5453 5643 7011 7749 8569 8581 9471 12177 13167 16359 21033 25707 25743 28413 39501 49077 59983 60067 77121 77229 85239 94391 147231 163039 179949 180201 231363 231687 283173 351821 489117 539847 540603 660737 849519 1055463 1141273 1467351 1619541 1621809 1793429 1982211 2462747 2548557 3166389 3423819 3870031 4402053 5380287 5946633 6684599 7388241 9499167 10271457 11610093 12554003 16140861 17839899 20053797 22164723 27090217 30814371 34830279 37662009 46792193 48422583 60161391 66494169 73530589 81270651 104490837 112986027 140376579 180484173 220591767 243811953 338958081 421129737 514714123 661775301 731435859 1263389211 1544142369 1985325903 4632427107 13897281321
• Sum of all divisors σ(n): 27682099200
• Sum of proper divisors (its aliquot sum) s(n): 13784817879
• 13897281321 is a deficient number, because the sum of its proper divisors (13784817879) is less than itself. Its deficiency is 112463442

Bases of 13897281321

• Binary: 1100111100010101111010111100101001₂
• Hexadecimal: 0x33C57AF29
• Base-36: 6DU2YW9

Squares and roots of 13897281321

• 13897281321 squared (13897281321²) is 193134428115015505041
• 13897281321 cubed (13897281321³) is 2684043480284822217831670639161
• The square root of 13897281321 is 117886.7308945329
• The cube root of 13897281321 is 2404.2333456239

Scales and comparisons

• 13,897,281,321 seconds is equal to 441 years, 46 weeks, 2 days, 3 hours, 55 minutes, 21 seconds.
• To count from 1 to 13,897,281,321 would take you about eight hundred eighty-three 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 13897281321 cubic inches would be around 200.4 feet tall.

Recreational maths with 13897281321

• 13897281321 backwards is 12318279831
• The number of decimal digits it has is: 11
• The sum of 13897281321's digits is 45
• More coming soon!