139531920

Names of 139531920

• Cardinal: 139531920 can be written as One hundred thirty-nine million, five hundred thirty-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.3953192 × 10⁸

Factors of 139531920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3147

Divisors of 139531920

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 17 20 22 24 30 33 34 40 44 48 51 55 60 66 68 80 85 88 102 110 120 132 136 165 170 176 187 204 220 240 255 264 272 330 340 374 408 440 510 528 561 660 680 748 816 880 935 1020 1122 1320 1360 1496 1870 2040 2244 2640 2805 2992 3109 3740 4080 4488 5610 6218 7480 8976 9327 11220 12436 14960 15545 18654 22440 24872 31090 34199 37308 44880 46635 49744 52853 62180 68398 74616 93270 102597 105706 124360 136796 149232 158559 170995 186540 205194 211412 248720 264265 273592 317118 341990 373080 410388 422824 512985 528530 547184 581383 634236 683980 746160 792795 820776 845648 1025970 1057060 1162766 1268472 1367960 1585590 1641552 1744149 2051940 2114120 2325532 2536944 2735920 2906915 3171180 3488298 4103880 4228240 4651064 5813830 6342360 6976596 8207760 8720745 9302128 11627660 12684720 13953192 17441490 23255320 27906384 34882980 46510640 69765960 139531920
• Sum of all divisors σ(n): 499789440
• Sum of proper divisors (its aliquot sum) s(n): 360257520
• 139531920 is an abundant number, because the sum of its proper divisors (360257520) is greater than itself. Its abundance is 220725600

Bases of 139531920

• Binary: 1000010100010001011010010000₂
• Hexadecimal: 0x8511690
• Base-36: 2B2NIO

Squares and roots of 139531920

• 139531920 squared (139531920²) is 19469156698886400
• 139531920 cubed (139531920³) is 2716568814976481253888000
• The square root of 139531920 is 11812.3630150787
• The cube root of 139531920 is 518.6700729425

Scales and comparisons

• 139,531,920 seconds is equal to 4 years, 22 weeks, 4 days, 22 hours, 52 minutes.
• To count from 1 to 139,531,920 would take you about six 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 139531920 cubic inches would be around 43.2 feet tall.

Recreational maths with 139531920

• 139531920 backwards is 029135931
• 139531920 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 139531920's digits is 33
• More coming soon!