40145970

Names of 40145970

• Cardinal: 40145970 can be written as Forty million, one hundred forty-five thousand, nine hundred seventy.

Scientific notation

• Scientific notation: 4.014597 × 10⁷

Factors of 40145970

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 435

Divisors of 40145970

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 10 15 30 41 82 123 127 205 246 254 257 381 410 514 615 635 762 771 1230 1270 1285 1542 1905 2570 3810 3855 5207 7710 10414 10537 15621 21074 26035 31242 31611 32639 52070 52685 63222 65278 78105 97917 105370 156210 158055 163195 195834 316110 326390 489585 979170 1338199 2676398 4014597 6690995 8029194 13381990 20072985 40145970
• Sum of all divisors σ(n): 99864576
• Sum of proper divisors (its aliquot sum) s(n): 59718606
• 40145970 is an abundant number, because the sum of its proper divisors (59718606) is greater than itself. Its abundance is 19572636

Bases of 40145970

• Binary: 10011001001001010000110010₂
• Hexadecimal: 0x2649432
• Base-36: NWGTU

Squares and roots of 40145970

• 40145970 squared (40145970²) is 1611698907240900
• 40145970 cubed (40145970³) is 64703215979125954173000
• The square root of 40145970 is 6336.0847532209
• The cube root of 40145970 is 342.4106929671

Scales and comparisons

• 40,145,970 seconds is equal to 1 year, 14 weeks, 2 days, 15 hours, 39 minutes, 30 seconds.
• To count from 1 to 40,145,970 would take you about forty-seven 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 40145970 cubic inches would be around 28.5 feet tall.

Recreational maths with 40145970

• 40145970 backwards is 07954104
• 40145970 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 40145970's digits is 30
• More coming soon!