29897728

Names of 29897728

• Cardinal: 29897728 can be written as Twenty-nine million, eight hundred ninety-seven thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.9897728 × 10⁷

Factors of 29897728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 149

Divisors of 29897728

• Number of divisors d(n): 88
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 43 56 64 86 97 112 128 172 194 224 256 301 344 388 448 512 602 679 688 776 896 1024 1204 1358 1376 1552 1792 2408 2716 2752 3104 3584 4171 4816 5432 5504 6208 7168 8342 9632 10864 11008 12416 16684 19264 21728 22016 24832 29197 33368 38528 43456 44032 49664 58394 66736 77056 86912 99328 116788 133472 154112 173824 233576 266944 308224 347648 467152 533888 695296 934304 1067776 1868608 2135552 3737216 4271104 7474432 14948864 29897728
• Sum of all divisors σ(n): 70613312
• Sum of proper divisors (its aliquot sum) s(n): 40715584
• 29897728 is an abundant number, because the sum of its proper divisors (40715584) is greater than itself. Its abundance is 10817856

Bases of 29897728

• Binary: 1110010000011010000000000₂
• Hexadecimal: 0x1C83400
• Base-36: HST8G

Squares and roots of 29897728

• 29897728 squared (29897728²) is 893874139561984
• 29897728 cubed (29897728³) is 26724805890858236772352
• The square root of 29897728 is 5467.8814910347
• The cube root of 29897728 is 310.3697565035

Scales and comparisons

• 29,897,728 seconds is equal to 49 weeks, 3 days, 55 minutes, 28 seconds.
• To count from 1 to 29,897,728 would take you about twenty-two 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 29897728 cubic inches would be around 25.9 feet tall.

Recreational maths with 29897728

• 29897728 backwards is 82779892
• The number of decimal digits it has is: 8
• The sum of 29897728's digits is 52
• More coming soon!