189378189

Names of 189378189

• Cardinal: 189378189 can be written as One hundred eighty-nine million, three hundred seventy-eight thousand, one hundred eighty-nine.

Scientific notation

• Scientific notation: 1.89378189 × 10⁸

Factors of 189378189

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 34

Divisors of 189378189

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 7 9 11 13 21 27 33 39 49 63 77 91 99 117 121 143 147 169 189 231 273 297 343 351 363 429 441 507 539 637 693 819 847 1001 1029 1089 1183 1287 1323 1521 1573 1617 1859 1911 2079 2457 2541 3003 3087 3267 3549 3773 3861 4459 4563 4719 4851 5577 5733 5929 7007 7623 8281 9009 9261 10647 11011 11319 13013 13377 14157 14553 16731 17199 17787 20449 21021 22869 24843 27027 31941 33033 33957 39039 40131 41503 42471 49049 50193 53361 57967 61347 63063 74529 77077 91091 99099 101871 117117 120393 124509 143143 147147 160083 173901 184041 189189 223587 231231 273273 297297 351351 373527 429429 441441 521703 539539 552123 637637 693693 819819 1002001 1120581 1288287 1324323 1565109 1618617 1912911 2081079 2459457 3006003 3864861 4855851 5738733 7014007 9018009 14567553 17216199 21042021 27054027 63126063 189378189
• Sum of all divisors σ(n): 389424000
• Sum of proper divisors (its aliquot sum) s(n): 200045811
• 189378189 is an abundant number, because the sum of its proper divisors (200045811) is greater than itself. Its abundance is 10667622

Bases of 189378189

• Binary: 1011010010011010111010001101₂
• Hexadecimal: 0xB49AE8D
• Base-36: 34R159

Squares and roots of 189378189

• 189378189 squared (189378189²) is 35864098468919721
• 189378189 cubed (189378189³) is 6791878018161689549365269
• The square root of 189378189 is 13761.4748119523
• The cube root of 189378189 is 574.2618773323

Scales and comparisons

• 189,378,189 seconds is equal to 6 years, 1 week, 21 hours, 3 minutes, 9 seconds.
• To count from 1 to 189,378,189 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 189378189 cubic inches would be around 47.9 feet tall.

Recreational maths with 189378189

• 189378189 backwards is 981873981
• The number of decimal digits it has is: 9
• The sum of 189378189's digits is 54
• More coming soon!