18970640

Names of 18970640

• Cardinal: 18970640 can be written as Eighteen million, nine hundred seventy thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.897064 × 10⁷

Factors of 18970640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 103

Divisors of 18970640

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 5 8 10 13 16 17 20 26 29 34 37 40 52 58 65 68 74 80 85 104 116 130 136 145 148 170 185 208 221 232 260 272 290 296 340 370 377 442 464 481 493 520 580 592 629 680 740 754 884 962 986 1040 1073 1105 1160 1258 1360 1480 1508 1768 1885 1924 1972 2146 2210 2320 2405 2465 2516 2960 3016 3145 3536 3770 3848 3944 4292 4420 4810 4930 5032 5365 6032 6290 6409 7540 7696 7888 8177 8584 8840 9620 9860 10064 10730 12580 12818 13949 15080 16354 17168 17680 18241 19240 19720 21460 25160 25636 27898 30160 32045 32708 36482 38480 39440 40885 42920 50320 51272 55796 64090 65416 69745 72964 81770 85840 91205 102544 111592 128180 130832 139490 145928 163540 182410 223184 237133 256360 278980 291856 327080 364820 474266 512720 557960 654160 729640 948532 1115920 1185665 1459280 1897064 2371330 3794128 4742660 9485320 18970640
• Sum of all divisors σ(n): 53434080
• Sum of proper divisors (its aliquot sum) s(n): 34463440
• 18970640 is an abundant number, because the sum of its proper divisors (34463440) is greater than itself. Its abundance is 15492800

Bases of 18970640

• Binary: 1001000010111100000010000₂
• Hexadecimal: 0x1217810
• Base-36: BALU8

Squares and roots of 18970640

• 18970640 squared (18970640²) is 359885182009600
• 18970640 cubed (18970640³) is 6827252229238598144000
• The square root of 18970640 is 4355.5298185181
• The cube root of 18970640 is 266.7026479227

Scales and comparisons

• 18,970,640 seconds is equal to 31 weeks, 2 days, 13 hours, 37 minutes, 20 seconds.
• To count from 1 to 18,970,640 would take you about forty-seven 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 18970640 cubic inches would be around 22.2 feet tall.

Recreational maths with 18970640

• 18970640 backwards is 04607981
• The number of decimal digits it has is: 8
• The sum of 18970640's digits is 35
• More coming soon!