400165020

Names of 400165020

• Cardinal: 400165020 can be written as Four hundred million, one hundred sixty-five thousand and twenty.

Scientific notation

• Scientific notation: 4.0016502 × 10⁸

Factors of 400165020

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 459

Divisors of 400165020

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 79 90 107 158 180 214 237 263 316 321 395 428 474 526 535 642 711 789 790 948 963 1052 1070 1185 1284 1315 1422 1578 1580 1605 1926 2140 2367 2370 2630 2844 3156 3210 3555 3852 3945 4734 4740 4815 5260 6420 7110 7890 8453 9468 9630 11835 14220 15780 16906 19260 20777 23670 25359 28141 33812 41554 42265 47340 50718 56282 62331 76077 83108 84423 84530 101436 103885 112564 124662 126795 140705 152154 168846 169060 186993 207770 249324 253269 253590 281410 304308 311655 337692 373986 380385 415540 422115 506538 507180 562820 623310 747972 760770 844230 934965 1013076 1246620 1266345 1521540 1688460 1869930 2223139 2532690 3739860 4446278 5065380 6669417 8892556 11115695 13338834 20008251 22231390 26677668 33347085 40016502 44462780 66694170 80033004 100041255 133388340 200082510 400165020
• Sum of all divisors σ(n): 1245404160
• Sum of proper divisors (its aliquot sum) s(n): 845239140
• 400165020 is an abundant number, because the sum of its proper divisors (845239140) is greater than itself. Its abundance is 445074120

Bases of 400165020

• Binary: 10111110110100000100010011100₂
• Hexadecimal: 0x17DA089C
• Base-36: 6M8XB0

Squares and roots of 400165020

• 400165020 squared (400165020²) is 160132043231600400
• 400165020 cubed (400165020³) is 64079242282414238698008000
• The square root of 400165020 is 20004.1250745939
• The cube root of 400165020 is 736.9076089439

Scales and comparisons

• 400,165,020 seconds is equal to 12 years, 37 weeks, 4 days, 12 hours, 57 minutes.
• To count from 1 to 400,165,020 would take you about nineteen 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 400165020 cubic inches would be around 61.4 feet tall.

Recreational maths with 400165020

• 400165020 backwards is 020561004
• 400165020 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 400165020's digits is 18
• More coming soon!