68423940

Names of 68423940

• Cardinal: 68423940 can be written as Sixty-eight million, four hundred twenty-three thousand, nine hundred forty.

Scientific notation

• Scientific notation: 6.842394 × 10⁷

Factors of 68423940

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 42

Divisors of 68423940

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 19 20 26 27 30 36 38 39 45 52 54 57 60 65 76 78 81 90 95 108 114 117 130 135 156 162 171 180 190 195 228 234 243 247 260 270 285 324 342 351 361 380 390 405 468 486 494 513 540 570 585 684 702 722 729 741 780 810 855 972 988 1026 1053 1083 1140 1170 1215 1235 1404 1444 1458 1482 1539 1620 1710 1755 1805 2052 2106 2166 2223 2340 2430 2470 2565 2916 2964 3078 3159 3249 3420 3510 3610 3645 3705 4212 4332 4446 4617 4693 4860 4940 5130 5265 5415 6156 6318 6498 6669 7020 7220 7290 7410 7695 8892 9234 9386 9477 9747 10260 10530 10830 11115 12636 12996 13338 13851 14079 14580 14820 15390 15795 16245 18468 18772 18954 19494 20007 21060 21660 22230 23085 23465 26676 27702 28158 29241 30780 31590 32490 33345 37908 38988 40014 42237 44460 46170 46930 47385 48735 55404 56316 58482 60021 63180 64980 66690 69255 70395 80028 84474 87723 92340 93860 94770 97470 100035 116964 120042 126711 133380 138510 140790 146205 168948 175446 180063 189540 194940 200070 211185 240084 253422 263169 277020 281580 292410 300105 350892 360126 380133 400140 422370 438615 506844 526338 584820 600210 633555 720252 760266 844740 877230 900315 1052676 1140399 1200420 1267110 1315845 1520532 1754460 1800630 1900665 2280798 2534220 2631690 3421197 3601260 3801330 4561596 5263380 5701995 6842394 7602660 11403990 13684788 17105985 22807980 34211970 68423940
• Sum of all divisors σ(n): 244862604
• Sum of proper divisors (its aliquot sum) s(n): 176438664
• 68423940 is an abundant number, because the sum of its proper divisors (176438664) is greater than itself. Its abundance is 108014724

Bases of 68423940

• Binary: 100000101000001000100000100₂
• Hexadecimal: 0x4141104
• Base-36: 14QK90

Squares and roots of 68423940

• 68423940 squared (68423940²) is 4681835565123600
• 68423940 cubed (68423940³) is 320349635797883298984000
• The square root of 68423940 is 8271.8764497545
• The cube root of 68423940 is 409.0119774989

Scales and comparisons

• 68,423,940 seconds is equal to 2 years, 9 weeks, 22 hours, 39 minutes.
• To count from 1 to 68,423,940 would take you about three 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 68423940 cubic inches would be around 34.1 feet tall.

Recreational maths with 68423940

• 68423940 backwards is 04932486
• 68423940 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 68423940's digits is 36
• More coming soon!