189728490

Names of 189728490

• Cardinal: 189728490 can be written as One hundred eighty-nine million, seven hundred twenty-eight thousand, four hundred ninety.

Scientific notation

• Scientific notation: 1.8972849 × 10⁸

Factors of 189728490

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6829

Divisors of 189728490

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 5 6 7 10 14 15 19 21 30 35 38 42 49 57 70 95 98 105 114 133 147 190 210 245 266 285 294 399 490 570 665 735 798 931 1330 1470 1862 1995 2793 3990 4655 5586 6793 9310 13586 13965 20379 27930 33965 40758 47551 67930 95102 101895 129067 142653 203790 237755 258134 285306 332857 387201 475510 645335 665714 713265 774402 903469 998571 1290670 1426530 1664285 1806938 1936005 1997142 2710407 3328570 3872010 4517345 4992855 5420814 6324283 9034690 9985710 12648566 13552035 18972849 27104070 31621415 37945698 63242830 94864245 189728490
• Sum of all divisors σ(n): 557651520
• Sum of proper divisors (its aliquot sum) s(n): 367923030
• 189728490 is an abundant number, because the sum of its proper divisors (367923030) is greater than itself. Its abundance is 178194540

Bases of 189728490

• Binary: 1011010011110000011011101010₂
• Hexadecimal: 0xB4F06EA
• Base-36: 34YJFU

Squares and roots of 189728490

• 189728490 squared (189728490²) is 35996899917680100
• 189728490 cubed (189728490³) is 6829637466062569676049000
• The square root of 189728490 is 13774.1965282915
• The cube root of 189728490 is 574.6157382213

Scales and comparisons

• 189,728,490 seconds is equal to 6 years, 1 week, 4 days, 22 hours, 21 minutes, 30 seconds.
• To count from 1 to 189,728,490 would take you about nine 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 189728490 cubic inches would be around 47.9 feet tall.

Recreational maths with 189728490

• 189728490 backwards is 094827981
• The number of decimal digits it has is: 9
• The sum of 189728490's digits is 48
• More coming soon!