30979872

Names of 30979872

• Cardinal: 30979872 can be written as Thirty million, nine hundred seventy-nine thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 3.0979872 × 10⁷

Factors of 30979872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 150

Divisors of 30979872

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 32 33 36 42 44 48 56 63 66 72 77 84 88 96 99 112 121 126 127 132 144 154 168 176 198 224 231 242 252 254 264 288 308 336 352 363 381 396 462 484 504 508 528 616 672 693 726 762 792 847 889 924 968 1008 1016 1056 1089 1143 1232 1386 1397 1452 1524 1584 1694 1778 1848 1936 2016 2032 2178 2286 2464 2541 2667 2772 2794 2904 3048 3168 3388 3556 3696 3872 4064 4191 4356 4572 5082 5334 5544 5588 5808 6096 6776 7112 7392 7623 8001 8382 8712 9144 9779 10164 10668 11088 11176 11616 12192 12573 13552 14224 15246 15367 16002 16764 17424 18288 19558 20328 21336 22176 22352 25146 27104 28448 29337 30492 30734 32004 33528 34848 36576 39116 40656 42672 44704 46101 50292 58674 60984 61468 64008 67056 78232 81312 85344 88011 92202 100584 107569 117348 121968 122936 128016 134112 138303 156464 176022 184404 201168 215138 234696 243936 245872 256032 276606 312928 322707 352044 368808 402336 430276 469392 491744 553212 645414 704088 737616 860552 938784 968121 1106424 1290828 1408176 1475232 1721104 1936242 2212848 2581656 2816352 3442208 3872484 4425696 5163312 7744968 10326624 15489936 30979872
• Sum of all divisors σ(n): 111541248
• Sum of proper divisors (its aliquot sum) s(n): 80561376
• 30979872 is an abundant number, because the sum of its proper divisors (80561376) is greater than itself. Its abundance is 49581504

Bases of 30979872

• Binary: 1110110001011011100100000₂
• Hexadecimal: 0x1D8B720
• Base-36: IG080

Squares and roots of 30979872

• 30979872 squared (30979872²) is 959752469136384
• 30979872 cubed (30979872³) is 29733008645529126862848
• The square root of 30979872 is 5565.9565215693
• The cube root of 30979872 is 314.0700615837

Scales and comparisons

• 30,979,872 seconds is equal to 51 weeks, 1 day, 13 hours, 31 minutes, 12 seconds.
• To count from 1 to 30,979,872 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 30979872 cubic inches would be around 26.2 feet tall.

Recreational maths with 30979872

• 30979872 backwards is 27897903
• The number of decimal digits it has is: 8
• The sum of 30979872's digits is 45
• More coming soon!