40401920

Names of 40401920

• Cardinal: 40401920 can be written as Forty million, four hundred one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 4.040192 × 10⁷

Factors of 40401920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 627

Divisors of 40401920

• Number of divisors d(n): 88
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 128 130 160 208 256 260 320 416 512 520 607 640 832 1024 1040 1214 1280 1664 2080 2428 2560 3035 3328 4160 4856 5120 6070 6656 7891 8320 9712 12140 13312 15782 16640 19424 24280 31564 33280 38848 39455 48560 63128 66560 77696 78910 97120 126256 155392 157820 194240 252512 310784 315640 388480 505024 621568 631280 776960 1010048 1262560 1553920 2020096 2525120 3107840 4040192 5050240 8080384 10100480 20200960 40401920
• Sum of all divisors σ(n): 104544384
• Sum of proper divisors (its aliquot sum) s(n): 64142464
• 40401920 is an abundant number, because the sum of its proper divisors (64142464) is greater than itself. Its abundance is 23740544

Bases of 40401920

• Binary: 10011010000111110000000000₂
• Hexadecimal: 0x2687C00
• Base-36: O1YBK

Squares and roots of 40401920

• 40401920 squared (40401920²) is 1632315139686400
• 40401920 cubed (40401920³) is 65948665688398757888000
• The square root of 40401920 is 6356.2504670601
• The cube root of 40401920 is 343.1368299831

Scales and comparisons

• 40,401,920 seconds is equal to 1 year, 14 weeks, 5 days, 14 hours, 45 minutes, 20 seconds.
• To count from 1 to 40,401,920 would take you about forty-eight 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 40401920 cubic inches would be around 28.6 feet tall.

Recreational maths with 40401920

• 40401920 backwards is 02910404
• 40401920 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 40401920's digits is 20
• More coming soon!