400489980

Names of 400489980

• Cardinal: 400489980 can be written as Four hundred million, four hundred eighty-nine thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 4.0048998 × 10⁸

Factors of 400489980

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 442

Divisors of 400489980

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 10 11 12 15 19 20 22 30 33 38 44 55 57 60 66 76 95 109 110 114 132 165 190 209 218 220 228 285 293 327 330 380 418 436 545 570 586 627 654 660 836 879 1045 1090 1140 1172 1199 1254 1308 1465 1635 1758 2071 2090 2180 2398 2508 2930 3135 3223 3270 3516 3597 4142 4180 4395 4796 5567 5860 5995 6213 6270 6446 6540 7194 8284 8790 9669 10355 11134 11990 12426 12540 12892 14388 16115 16701 17580 17985 19338 20710 22268 22781 23980 24852 27835 31065 31937 32230 33402 35970 38676 41420 45562 48345 55670 61237 62130 63874 64460 66804 68343 71940 83505 91124 95811 96690 111340 113905 122474 124260 127748 136686 159685 167010 183711 191622 193380 227810 244948 273372 306185 319370 334020 341715 351307 367422 383244 455620 479055 606803 612370 638740 683430 702614 734844 918555 958110 1053921 1213606 1224740 1366860 1405228 1756535 1820409 1837110 1916220 2107842 2427212 3034015 3513070 3640818 3674220 4215684 5269605 6068030 6674833 7026140 7281636 9102045 10539210 12136060 13349666 18204090 20024499 21078420 26699332 33374165 36408180 40048998 66748330 80097996 100122495 133496660 200244990 400489980
• Sum of all divisors σ(n): 1303948800
• Sum of proper divisors (its aliquot sum) s(n): 903458820
• 400489980 is an abundant number, because the sum of its proper divisors (903458820) is greater than itself. Its abundance is 502968840

Bases of 400489980

• Binary: 10111110111101111110111111100₂
• Hexadecimal: 0x17DEFDFC
• Base-36: 6MFW1O

Squares and roots of 400489980

• 400489980 squared (400489980²) is 160392224080400400
• 400489980 cubed (400489980³) is 64235478614115074587992000
• The square root of 400489980 is 20012.2457510395
• The cube root of 400489980 is 737.1070272617

Scales and comparisons

• 400,489,980 seconds is equal to 12 years, 38 weeks, 1 day, 7 hours, 13 minutes.
• To count from 1 to 400,489,980 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 400489980 cubic inches would be around 61.4 feet tall.

Recreational maths with 400489980

• 400489980 backwards is 089984004
• The number of decimal digits it has is: 9
• The sum of 400489980's digits is 42
• More coming soon!