12872640

Names of 12872640

• Cardinal: 12872640 can be written as Twelve million, eight hundred seventy-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.287264 × 10⁷

Factors of 12872640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 97

Divisors of 12872640

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 20 22 23 24 30 32 33 40 44 46 48 53 55 60 64 66 69 80 88 92 96 106 110 115 120 132 138 159 160 165 176 184 192 212 220 230 240 253 264 265 276 318 320 330 345 352 368 424 440 460 480 506 528 530 552 583 636 660 690 704 736 759 795 848 880 920 960 1012 1056 1060 1104 1166 1219 1265 1272 1320 1380 1472 1518 1590 1696 1749 1760 1840 2024 2112 2120 2208 2332 2438 2530 2544 2640 2760 2915 3036 3180 3392 3498 3520 3657 3680 3795 4048 4240 4416 4664 4876 5060 5088 5280 5520 5830 6072 6095 6360 6996 7314 7360 7590 8096 8480 8745 9328 9752 10120 10176 10560 11040 11660 12144 12190 12720 13409 13992 14628 15180 16192 16960 17490 18285 18656 19504 20240 22080 23320 24288 24380 25440 26818 27984 29256 30360 34980 36570 37312 39008 40227 40480 46640 48576 48760 50880 53636 55968 58512 60720 67045 69960 73140 78016 80454 80960 93280 97520 107272 111936 117024 121440 134090 139920 146280 160908 186560 195040 201135 214544 234048 242880 268180 279840 292560 321816 390080 402270 429088 536360 559680 585120 643632 804540 858176 1072720 1170240 1287264 1609080 2145440 2574528 3218160 4290880 6436320 12872640
• Sum of all divisors σ(n): 47402496
• Sum of proper divisors (its aliquot sum) s(n): 34529856
• 12872640 is an abundant number, because the sum of its proper divisors (34529856) is greater than itself. Its abundance is 21657216

Bases of 12872640

• Binary: 110001000110101111000000₂
• Hexadecimal: 0xC46BC0
• Base-36: 7NWLC

Squares and roots of 12872640

• 12872640 squared (12872640²) is 165704860569600
• 12872640 cubed (12872640³) is 2133059016362655744000
• The square root of 12872640 is 3587.8461505477
• The cube root of 12872640 is 234.3630859723

Scales and comparisons

• 12,872,640 seconds is equal to 21 weeks, 1 day, 23 hours, 44 minutes.
• To count from 1 to 12,872,640 would take you about thirty-one weeks!

  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 12872640 cubic inches would be around 19.5 feet tall.

Recreational maths with 12872640

• 12872640 backwards is 04627821
• 12872640 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 12872640's digits is 30
• More coming soon!