138198372

Names of 138198372

• Cardinal: 138198372 can be written as One hundred thirty-eight million, one hundred ninety-eight thousand, three hundred seventy-two.

Scientific notation

• Scientific notation: 1.38198372 × 10⁸

Factors of 138198372

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 107

Divisors of 138198372

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 12 13 17 26 31 34 39 41 51 52 62 68 78 82 93 102 123 124 156 164 186 204 221 246 372 403 442 492 527 533 663 697 806 884 1054 1066 1209 1271 1326 1394 1581 1599 1612 1681 2091 2108 2132 2418 2542 2652 2788 3162 3198 3362 3813 4182 4836 5043 5084 6324 6396 6724 6851 7626 8364 9061 10086 13702 15252 16523 18122 20172 20553 21607 21853 27183 27404 28577 33046 36244 41106 43214 43706 49569 52111 54366 57154 64821 65559 66092 82212 85731 86428 87412 99138 104222 108732 114308 129642 131118 156333 171462 198276 208444 259284 262236 280891 312666 342924 371501 561782 625332 677443 743002 842673 885887 1114503 1123564 1354886 1486004 1685346 1771774 2032329 2229006 2657661 2709772 3370692 3543548 4064658 4458012 5315322 8129316 10630644 11516531 23033062 34549593 46066124 69099186 138198372
• Sum of all divisors σ(n): 389039616
• Sum of proper divisors (its aliquot sum) s(n): 250841244
• 138198372 is an abundant number, because the sum of its proper divisors (250841244) is greater than itself. Its abundance is 112642872

Bases of 138198372

• Binary: 1000001111001011110101100100₂
• Hexadecimal: 0x83CBD64
• Base-36: 2AA2JO

Squares and roots of 138198372

• 138198372 squared (138198372²) is 19098790023450384
• 138198372 cubed (138198372³) is 2639421688410684891574848
• The square root of 138198372 is 11755.7803654203
• The cube root of 138198372 is 517.0124194671

Scales and comparisons

• 138,198,372 seconds is equal to 4 years, 20 weeks, 3 days, 12 hours, 26 minutes, 12 seconds.
• To count from 1 to 138,198,372 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 138198372 cubic inches would be around 43.1 feet tall.

Recreational maths with 138198372

• 138198372 backwards is 273891831
• The number of decimal digits it has is: 9
• The sum of 138198372's digits is 42
• More coming soon!