40029390

Names of 40029390

• Cardinal: 40029390 can be written as Forty million, twenty-nine thousand, three hundred ninety.

Scientific notation

• Scientific notation: 4.002939 × 10⁷

Factors of 40029390

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 46

Divisors of 40029390

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 5 6 9 10 15 17 18 19 27 30 34 38 45 51 54 57 81 85 90 95 102 114 135 153 162 170 171 190 243 255 270 285 289 306 323 342 405 459 486 510 513 570 578 646 729 765 810 855 867 918 969 1026 1215 1377 1445 1458 1530 1539 1615 1710 1734 1938 2295 2430 2565 2601 2754 2890 2907 3078 3230 3645 4131 4335 4590 4617 4845 5130 5202 5491 5814 6885 7290 7695 7803 8262 8670 8721 9234 9690 10982 12393 13005 13770 13851 14535 15390 15606 16473 17442 20655 23085 23409 24786 26010 26163 27455 27702 29070 32946 39015 41310 43605 46170 46818 49419 52326 54910 61965 69255 70227 78030 78489 82365 87210 98838 117045 123930 130815 138510 140454 148257 156978 164730 210681 234090 235467 247095 261630 296514 351135 392445 421362 444771 470934 494190 702270 741285 784890 889542 1053405 1177335 1334313 1482570 2106810 2223855 2354670 2668626 4002939 4447710 6671565 8005878 13343130 20014695 40029390
• Sum of all divisors σ(n): 120798360
• Sum of proper divisors (its aliquot sum) s(n): 80768970
• 40029390 is an abundant number, because the sum of its proper divisors (80768970) is greater than itself. Its abundance is 40739580

Bases of 40029390

• Binary: 10011000101100110011001110₂
• Hexadecimal: 0x262CCCE
• Base-36: NTYVI

Squares and roots of 40029390

• 40029390 squared (40029390²) is 1602352063772100
• 40029390 cubed (40029390³) is 64141175678038262019000
• The square root of 40029390 is 6326.8783772095
• The cube root of 40029390 is 342.0789291511

Scales and comparisons

• 40,029,390 seconds is equal to 1 year, 14 weeks, 1 day, 7 hours, 16 minutes, 30 seconds.
• To count from 1 to 40,029,390 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 40029390 cubic inches would be around 28.5 feet tall.

Recreational maths with 40029390

• 40029390 backwards is 09392004
• 40029390 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 40029390's digits is 27
• More coming soon!