3985440

Names of 3985440

• Cardinal: 3985440 can be written as Three million, nine hundred eighty-five thousand, four hundred forty.

Scientific notation

• Scientific notation: 3.98544 × 10⁶

Factors of 3985440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 52

Divisors of 3985440

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 19 20 23 24 30 32 38 40 46 48 57 60 69 76 80 92 95 96 114 115 120 138 152 160 184 190 228 230 240 276 285 304 345 361 368 380 437 456 460 480 552 570 608 690 722 736 760 874 912 920 1083 1104 1140 1311 1380 1444 1520 1748 1805 1824 1840 2166 2185 2208 2280 2622 2760 2888 3040 3496 3610 3680 4332 4370 4560 5244 5415 5520 5776 6555 6992 7220 8303 8664 8740 9120 10488 10830 11040 11552 13110 13984 14440 16606 17328 17480 20976 21660 24909 26220 28880 33212 34656 34960 41515 41952 43320 49818 52440 57760 66424 69920 83030 86640 99636 104880 124545 132848 166060 173280 199272 209760 249090 265696 332120 398544 498180 664240 797088 996360 1328480 1992720 3985440
• Sum of all divisors σ(n): 13825728
• Sum of proper divisors (its aliquot sum) s(n): 9840288
• 3985440 is an abundant number, because the sum of its proper divisors (9840288) is greater than itself. Its abundance is 5854848

Bases of 3985440

• Binary: 1111001101000000100000₂
• Hexadecimal: 0x3CD020
• Base-36: 2DF6O

Squares and roots of 3985440

• 3985440 squared (3985440²) is 15883731993600
• 3985440 cubed (3985440³) is 63303660836573184000
• The square root of 3985440 is 1996.3566815577
• The cube root of 3985440 is 158.5472663685

Scales and comparisons

• 3,985,440 seconds is equal to 6 weeks, 4 days, 3 hours, 4 minutes.
• To count from 1 to 3,985,440 would take you about nine 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 3985440 cubic inches would be around 13.2 feet tall.

Recreational maths with 3985440

• 3985440 backwards is 0445893
• The number of decimal digits it has is: 7
• The sum of 3985440's digits is 33
• More coming soon!