138439488

Names of 138439488

• Cardinal: 138439488 can be written as One hundred thirty-eight million, four hundred thirty-nine thousand, four hundred eighty-eight.

Scientific notation

• Scientific notation: 1.38439488 × 10⁸

Factors of 138439488

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 176

Divisors of 138439488

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 59 64 66 88 96 101 118 121 132 176 177 192 202 236 242 264 303 352 354 363 404 472 484 528 606 649 704 708 726 808 944 968 1056 1111 1212 1298 1416 1452 1616 1888 1936 1947 2112 2222 2424 2596 2832 2904 3232 3333 3776 3872 3894 4444 4848 5192 5664 5808 5959 6464 6666 7139 7744 7788 8888 9696 10384 11328 11616 11918 12221 13332 14278 15576 17776 17877 19392 20768 21417 23232 23836 24442 26664 28556 31152 35552 35754 36663 41536 42834 47672 48884 53328 57112 62304 65549 71104 71508 73326 85668 95344 97768 106656 114224 124608 131098 143016 146652 171336 190688 195536 196647 213312 228448 262196 286032 293304 342672 381376 391072 393294 456896 524392 572064 586608 685344 721039 782144 786588 1048784 1144128 1173216 1370688 1442078 1573176 2097568 2163117 2346432 2884156 3146352 4195136 4326234 5768312 6292704 8652468 11536624 12585408 17304936 23073248 34609872 46146496 69219744 138439488
• Sum of all divisors σ(n): 413491680
• Sum of proper divisors (its aliquot sum) s(n): 275052192
• 138439488 is an abundant number, because the sum of its proper divisors (275052192) is greater than itself. Its abundance is 136612704

Bases of 138439488

• Binary: 1000010000000110101101000000₂
• Hexadecimal: 0x8406B40
• Base-36: 2AF8LC

Squares and roots of 138439488

• 138439488 squared (138439488²) is 19165491837702144
• 138439488 cubed (138439488³) is 2653260877279663911862272
• The square root of 138439488 is 11766.0311065373
• The cube root of 138439488 is 517.3129235817

Scales and comparisons

• 138,439,488 seconds is equal to 4 years, 20 weeks, 6 days, 7 hours, 24 minutes, 48 seconds.
• To count from 1 to 138,439,488 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 138439488 cubic inches would be around 43.1 feet tall.

Recreational maths with 138439488

• 138439488 backwards is 884934831
• 138439488 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138439488's digits is 48
• More coming soon!