1397890008

Names of 1397890008

• Cardinal: 1397890008 can be written as One billion, three hundred ninety-seven million, eight hundred ninety thousand and eight.

Scientific notation

• Scientific notation: 1.397890008 × 10⁹

Factors of 1397890008

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 639

Divisors of 1397890008

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 9 12 17 18 24 27 34 36 51 54 68 72 102 108 136 153 204 216 306 408 459 612 617 918 1224 1234 1836 1851 2468 3672 3702 4936 5553 7404 10489 11106 14808 16659 20978 22212 31467 33318 41956 44424 62934 66636 83912 94401 125868 133272 188802 251736 283203 377604 380689 566406 755208 761378 1132812 1142067 1522756 2265624 2284134 3045512 3426201 4568268 6471713 6852402 9136536 10278603 12943426 13704804 19415139 20557206 25886852 27409608 38830278 41114412 51773704 58245417 77660556 82228824 116490834 155321112 174736251 232981668 349472502 465963336 698945004 1397890008
• Sum of all divisors σ(n): 4118115600
• Sum of proper divisors (its aliquot sum) s(n): 2720225592
• 1397890008 is an abundant number, because the sum of its proper divisors (2720225592) is greater than itself. Its abundance is 1322335584

Bases of 1397890008

• Binary: 1010011010100100001101111011000₂
• Hexadecimal: 0x53521BD8
• Base-36: N49MU0

Squares and roots of 1397890008

• 1397890008 squared (1397890008²) is 1954096474466240064
• 1397890008 cubed (1397890008³) is 2731611936324384118794880512
• The square root of 1397890008 is 37388.3672818165
• The cube root of 1397890008 is 1118.1266536195

Scales and comparisons

• 1,397,890,008 seconds is equal to 44 years, 23 weeks, 2 days, 6 hours, 46 minutes, 48 seconds.
• To count from 1 to 1,397,890,008 would take you about eighty-eight 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 1397890008 cubic inches would be around 93.2 feet tall.

Recreational maths with 1397890008

• 1397890008 backwards is 8000987931
• The number of decimal digits it has is: 10
• The sum of 1397890008's digits is 45
• More coming soon!