138541788

Names of 138541788

• Cardinal: 138541788 can be written as One hundred thirty-eight million, five hundred forty-one thousand, seven hundred eighty-eight.

Scientific notation

• Scientific notation: 1.38541788 × 10⁸

Factors of 138541788

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 140

Divisors of 138541788

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 9 11 12 14 18 21 22 23 28 33 36 41 42 44 46 53 63 66 69 77 82 84 92 99 106 123 126 132 138 154 159 161 164 198 207 212 231 246 252 253 276 287 308 318 322 369 371 396 414 451 462 477 483 492 506 574 583 636 644 693 738 742 759 828 861 902 924 943 954 966 1012 1113 1148 1166 1219 1353 1386 1449 1476 1484 1518 1722 1749 1771 1804 1886 1908 1932 2173 2226 2277 2332 2438 2583 2706 2772 2829 2898 3036 3157 3339 3444 3498 3542 3657 3772 4059 4081 4346 4452 4554 4876 5166 5247 5313 5412 5658 5796 6314 6519 6601 6678 6996 7084 7314 8118 8162 8487 8533 8692 9108 9471 10332 10373 10494 10626 10971 11316 12243 12628 13038 13202 13356 13409 14628 15211 15939 16236 16324 16974 17066 18942 19557 19803 20746 20988 21252 21942 23903 24486 25599 26076 26404 26818 28413 30422 31119 31878 33948 34132 36729 37884 39114 39606 40227 41492 43884 45633 47806 48972 49979 51198 53636 56826 59409 60844 62238 63756 71709 72611 73458 76797 78228 79212 80454 91266 93357 93863 95612 99958 102396 113652 118818 120681 124476 136899 143418 145222 146916 149937 153594 160908 167321 182532 186714 187726 199916 215127 217833 237636 241362 273798 281589 286836 290444 299874 307188 334642 349853 373428 375452 430254 435666 449811 482724 501963 547596 549769 563178 599748 653499 669284 699706 844767 860508 871332 899622 1003926 1049559 1099538 1126356 1306998 1399412 1505889 1649307 1689534 1799244 2007852 2099118 2199076 2613996 3011778 3148677 3298614 3379068 3848383 4198236 4947921 6023556 6297354 6597228 7696766 9895842 11545149 12594708 15393532 19791684 23090298 34635447 46180596 69270894 138541788
• Sum of all divisors σ(n): 475517952
• Sum of proper divisors (its aliquot sum) s(n): 336976164
• 138541788 is an abundant number, because the sum of its proper divisors (336976164) is greater than itself. Its abundance is 198434376

Bases of 138541788

• Binary: 1000010000011111101011011100₂
• Hexadecimal: 0x841FADC
• Base-36: 2AHFJ0

Squares and roots of 138541788

• 138541788 squared (138541788²) is 19193827022236944
• 138541788 cubed (138541788³) is 2659147114223421981415872
• The square root of 138541788 is 11770.3775640375
• The cube root of 138541788 is 517.4403151779

Scales and comparisons

• 138,541,788 seconds is equal to 4 years, 21 weeks, 11 hours, 49 minutes, 48 seconds.
• To count from 1 to 138,541,788 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 138541788 cubic inches would be around 43.1 feet tall.

Recreational maths with 138541788

• 138541788 backwards is 887145831
• The number of decimal digits it has is: 9
• The sum of 138541788's digits is 45
• More coming soon!