2138857448

Names of 2138857448

• Cardinal: 2138857448 can be written as Two billion, one hundred thirty-eight million, eight hundred fifty-seven thousand, four hundred forty-eight.

Scientific notation

• Scientific notation: 2.138857448 × 10⁹

Factors of 2138857448

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3566

Divisors of 2138857448

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 7 8 13 14 17 26 28 34 49 52 56 68 91 98 104 119 136 182 196 221 238 343 364 392 442 476 637 686 728 833 884 952 1274 1372 1547 1666 1768 2548 2744 3094 3332 3527 4459 5096 5831 6188 6664 7054 8918 10829 11662 12376 14108 17836 21658 23324 24689 28216 35672 43316 45851 46648 49378 59959 75803 86632 91702 98756 119918 151606 172823 183404 197512 239836 303212 320957 345646 366808 419713 479672 606424 641914 691292 779467 839426 1209761 1283828 1382584 1558934 1678852 2246699 2419522 2567656 2937991 3117868 3357704 4493398 4839044 5456269 5875982 6235736 8986796 9678088 10912538 11751964 15726893 17973592 20565937 21825076 23503928 31453786 38193883 41131874 43650152 62907572 76387766 82263748 125815144 152775532 164527496 267357181 305551064 534714362 1069428724 2138857448
• Sum of all divisors σ(n): 5334336000
• Sum of proper divisors (its aliquot sum) s(n): 3195478552
• 2138857448 is an abundant number, because the sum of its proper divisors (3195478552) is greater than itself. Its abundance is 1056621104

Bases of 2138857448

• Binary: 1111111011111000101111111101000₂
• Hexadecimal: 0x7F7C5FE8
• Base-36: ZDF4YW

Squares and roots of 2138857448

• 2138857448 squared (2138857448²) is 4574711182865072704
• 2138857448 cubed (2138857448³) is 9784655085919850732011899392
• The square root of 2138857448 is 46247.7831684937
• The cube root of 2138857448 is 1288.4293622097

Scales and comparisons

• 2,138,857,448 seconds is equal to 68 years, 3 days, 7 hours, 4 minutes, 8 seconds.
• To count from 1 to 2,138,857,448 would take you about one hundred thirty-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 2138857448 cubic inches would be around 107.4 feet tall.

Recreational maths with 2138857448

• 2138857448 backwards is 8447588312
• The number of decimal digits it has is: 10
• The sum of 2138857448's digits is 50
• More coming soon!