29870820

Names of 29870820

• Cardinal: 29870820 can be written as Twenty-nine million, eight hundred seventy thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 2.987082 × 10⁷

Factors of 29870820

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 325

Divisors of 29870820

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 151 157 180 210 252 302 314 315 420 453 471 604 628 630 755 785 906 942 1057 1099 1260 1359 1413 1510 1570 1812 1884 2114 2198 2265 2355 2718 2826 3020 3140 3171 3297 4228 4396 4530 4710 5285 5436 5495 5652 6342 6594 6795 7065 9060 9420 9513 9891 10570 10990 12684 13188 13590 14130 15855 16485 19026 19782 21140 21980 23707 27180 28260 31710 32970 38052 39564 47414 47565 49455 63420 65940 71121 94828 95130 98910 118535 142242 165949 190260 197820 213363 237070 284484 331898 355605 426726 474140 497847 663796 711210 829745 853452 995694 1066815 1422420 1493541 1659490 1991388 2133630 2489235 2987082 3318980 4267260 4978470 5974164 7467705 9956940 14935410 29870820
• Sum of all divisors σ(n): 104901888
• Sum of proper divisors (its aliquot sum) s(n): 75031068
• 29870820 is an abundant number, because the sum of its proper divisors (75031068) is greater than itself. Its abundance is 45160248

Bases of 29870820

• Binary: 1110001111100101011100100₂
• Hexadecimal: 0x1C7CAE4
• Base-36: HS8H0

Squares and roots of 29870820

• 29870820 squared (29870820²) is 892265887472400
• 29870820 cubed (29870820³) is 26652713716828315368000
• The square root of 29870820 is 5465.4203863929
• The cube root of 29870820 is 310.2766174743

Scales and comparisons

• 29,870,820 seconds is equal to 49 weeks, 2 days, 17 hours, 27 minutes.
• To count from 1 to 29,870,820 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 29870820 cubic inches would be around 25.9 feet tall.

Recreational maths with 29870820

• 29870820 backwards is 02807892
• 29870820 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 29870820's digits is 36
• More coming soon!