139842640

Names of 139842640

• Cardinal: 139842640 can be written as One hundred thirty-nine million, eight hundred forty-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.3984264 × 10⁸

Factors of 139842640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 231

Divisors of 139842640

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 29 35 40 56 58 70 79 80 109 112 116 140 145 158 203 218 232 280 290 316 395 406 436 464 545 553 560 580 632 763 790 812 872 1015 1090 1106 1160 1264 1526 1580 1624 1744 2030 2180 2212 2291 2320 2765 3052 3160 3161 3248 3815 4060 4360 4424 4582 5530 6104 6320 6322 7630 8120 8611 8720 8848 9164 11060 11455 12208 12644 15260 15805 16037 16240 17222 18328 22120 22127 22910 25288 30520 31610 32074 34444 36656 43055 44240 44254 45820 50576 60277 61040 63220 64148 68888 80185 86110 88508 91640 110635 120554 126440 128296 137776 160370 172220 177016 183280 221270 241108 249719 252880 256592 301385 320740 344440 354032 442540 482216 499438 602770 641480 688880 885080 964432 998876 1205540 1248595 1282960 1748033 1770160 1997752 2411080 2497190 3496066 3995504 4822160 4994380 6992132 8740165 9988760 13984264 17480330 19977520 27968528 34960660 69921320 139842640
• Sum of all divisors σ(n): 392832000
• Sum of proper divisors (its aliquot sum) s(n): 252989360
• 139842640 is an abundant number, because the sum of its proper divisors (252989360) is greater than itself. Its abundance is 113146720

Bases of 139842640

• Binary: 1000010101011101010001010000₂
• Hexadecimal: 0x855D450
• Base-36: 2B9B9S

Squares and roots of 139842640

• 139842640 squared (139842640²) is 19555963962169600
• 139842640 cubed (139842640³) is 2734757628214656991744000
• The square root of 139842640 is 11825.5080229139
• The cube root of 139842640 is 519.0547918041

Scales and comparisons

• 139,842,640 seconds is equal to 4 years, 23 weeks, 1 day, 13 hours, 10 minutes, 40 seconds.
• To count from 1 to 139,842,640 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 139842640 cubic inches would be around 43.3 feet tall.

Recreational maths with 139842640

• 139842640 backwards is 046248931
• The number of decimal digits it has is: 9
• The sum of 139842640's digits is 37
• More coming soon!