30999969

Names of 30999969

• Cardinal: 30999969 can be written as Thirty million, nine hundred ninety-nine thousand, nine hundred sixty-nine.

Scientific notation

• Scientific notation: 3.0999969 × 10⁷

Factors of 30999969

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 102

Divisors of 30999969

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 7 9 11 13 21 27 31 33 37 39 63 77 91 93 99 111 117 143 189 217 231 259 273 279 297 333 341 351 403 407 429 481 651 693 777 819 837 999 1001 1023 1147 1209 1221 1287 1443 1953 2079 2331 2387 2457 2821 2849 3003 3069 3367 3441 3627 3663 3861 4329 4433 5291 5859 6993 7161 8029 8463 8547 9009 9207 10101 10323 10881 10989 12617 12987 13299 14911 15873 21483 24087 25389 25641 27027 30303 30969 31031 37037 37851 39897 44733 47619 64449 72261 76167 76923 88319 90909 93093 104377 111111 113553 119691 134199 142857 164021 216783 264957 279279 313131 333333 340659 402597 492063 794871 837837 939393 999999 1148147 1476189 2384613 2818179 3444441 4428567 10333323 30999969
• Sum of all divisors σ(n): 65372160
• Sum of proper divisors (its aliquot sum) s(n): 34372191
• 30999969 is an abundant number, because the sum of its proper divisors (34372191) is greater than itself. Its abundance is 3372222

Bases of 30999969

• Binary: 1110110010000010110100001₂
• Hexadecimal: 0x1D905A1
• Base-36: IGFQ9

Squares and roots of 30999969

• 30999969 squared (30999969²) is 960998078000961
• 30999969 cubed (30999969³) is 29790910627089372970209
• The square root of 30999969 is 5567.7615789475
• The cube root of 30999969 is 314.1379605265

Scales and comparisons

• 30,999,969 seconds is equal to 51 weeks, 1 day, 19 hours, 6 minutes, 9 seconds.
• To count from 1 to 30,999,969 would take you about twenty-four weeks!

  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 30999969 cubic inches would be around 26.2 feet tall.

Recreational maths with 30999969

• 30999969 backwards is 96999903
• The number of decimal digits it has is: 8
• The sum of 30999969's digits is 54
• More coming soon!