30929986

Names of 30929986

• Cardinal: 30929986 can be written as Thirty million, nine hundred twenty-nine thousand, nine hundred eighty-six.

Scientific notation

• Scientific notation: 3.0929986 × 10⁷

Factors of 30929986

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 910

Divisors of 30929986

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 19 23 38 43 46 86 437 817 823 874 989 1634 1646 1978 15637 18791 18929 31274 35389 37582 37858 70778 359651 672391 719302 813947 1344782 1627894 15464993 30929986
• Sum of all divisors σ(n): 52208640
• Sum of proper divisors (its aliquot sum) s(n): 21278654
• 30929986 is a deficient number, because the sum of its proper divisors (21278654) is less than itself. Its deficiency is 9651332

Bases of 30929986

• Binary: 1110101111111010001000010₂
• Hexadecimal: 0x1D7F442
• Base-36: IEXQA

Squares and roots of 30929986

• 30929986 squared (30929986²) is 956664033960196
• 30929986 cubed (30929986³) is 29589605177092386837256
• The square root of 30929986 is 5561.4733659345
• The cube root of 30929986 is 313.9013916769

Scales and comparisons

• 30,929,986 seconds is equal to 51 weeks, 23 hours, 39 minutes, 46 seconds.
• To count from 1 to 30,929,986 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 30929986 cubic inches would be around 26.2 feet tall.

Recreational maths with 30929986

• 30929986 backwards is 68992903
• 30929986 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30929986's digits is 46
• More coming soon!