1250021997

Names of 1250021997

• Cardinal: 1250021997 can be written as One billion, two hundred fifty million, twenty-one thousand, nine hundred ninety-seven.

Scientific notation

• Scientific notation: 1.250021997 × 10⁹

Factors of 1250021997

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 126

Divisors of 1250021997

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 21 27 43 49 63 73 129 147 189 219 301 343 387 441 511 657 903 1029 1161 1323 1533 1849 1971 2107 2709 3087 3139 3577 4599 5547 6321 8127 9261 9417 10731 12943 13797 14749 16641 18963 21973 25039 28251 32193 38829 44247 49923 56889 65919 75117 84753 90601 96579 116487 132741 134977 153811 197757 225351 271803 349461 398223 404931 461433 593271 634207 676053 815409 944839 1076677 1214793 1384299 1902621 2446227 2834517 3230031 3644379 4152897 5707863 6613873 8503551 9690093 17123589 19841619 25510653 29070279 46297111 59524857 138891333 178574571 416673999 1250021997
• Sum of all divisors σ(n): 2241312000
• Sum of proper divisors (its aliquot sum) s(n): 991290003
• 1250021997 is a deficient number, because the sum of its proper divisors (991290003) is less than itself. Its deficiency is 258731994

Bases of 1250021997

• Binary: 1001010100000011101001001101101₂
• Hexadecimal: 0x4A81D26D
• Base-36: KO8B59

Squares and roots of 1250021997

• 1250021997 squared (1250021997²) is 1562554992983868009
• 1250021997 cubed (1250021997³) is 1953228112752015677394593973
• The square root of 1250021997 is 35355.6501425161
• The cube root of 1250021997 is 1077.2236637921

Scales and comparisons

• 1,250,021,997 seconds is equal to 39 years, 38 weeks, 5 days, 20 hours, 19 minutes, 57 seconds.
• To count from 1 to 1,250,021,997 would take you about seventy-nine years!

  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 1250021997 cubic inches would be around 89.8 feet tall.

Recreational maths with 1250021997

• 1250021997 backwards is 7991200521
• The number of decimal digits it has is: 10
• The sum of 1250021997's digits is 36
• More coming soon!