139231872

Names of 139231872

• Cardinal: 139231872 can be written as One hundred thirty-nine million, two hundred thirty-one thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.39231872 × 10⁸

Factors of 139231872

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1051

Divisors of 139231872

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 81 96 104 108 117 128 144 156 162 192 208 216 234 288 312 324 351 384 416 432 468 576 624 648 702 832 864 936 1033 1053 1152 1248 1296 1404 1664 1728 1872 2066 2106 2496 2592 2808 3099 3456 3744 4132 4212 4992 5184 5616 6198 7488 8264 8424 9297 10368 11232 12396 13429 14976 16528 16848 18594 22464 24792 26858 27891 33056 33696 37188 40287 44928 49584 53716 55782 66112 67392 74376 80574 83673 99168 107432 111564 120861 132224 134784 148752 161148 167346 198336 214864 223128 241722 297504 322296 334692 362583 396672 429728 446256 483444 595008 644592 669384 725166 859456 892512 966888 1087749 1190016 1289184 1338768 1450332 1718912 1785024 1933776 2175498 2578368 2677536 2900664 3570048 3867552 4350996 5156736 5355072 5801328 7735104 8701992 10710144 11602656 15470208 17403984 23205312 34807968 46410624 69615936 139231872
• Sum of all divisors σ(n): 446656980
• Sum of proper divisors (its aliquot sum) s(n): 307425108
• 139231872 is an abundant number, because the sum of its proper divisors (307425108) is greater than itself. Its abundance is 168193236

Bases of 139231872

• Binary: 1000010011001000001010000000₂
• Hexadecimal: 0x84C8280
• Base-36: 2AW800

Squares and roots of 139231872

• 139231872 squared (139231872²) is 19385514180624384
• 139231872 cubed (139231872³) is 2699081429050879113166848
• The square root of 139231872 is 11799.6555881941
• The cube root of 139231872 is 518.2980252091

Scales and comparisons

• 139,231,872 seconds is equal to 4 years, 22 weeks, 1 day, 11 hours, 31 minutes, 12 seconds.
• To count from 1 to 139,231,872 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 139231872 cubic inches would be around 43.2 feet tall.

Recreational maths with 139231872

• 139231872 backwards is 278132931
• 139231872 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 139231872's digits is 36
• More coming soon!