13028638720

Names of 13028638720

• Cardinal: 13028638720 can be written as Thirteen billion, twenty-eight million, six hundred thirty-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.302863872 × 10¹⁰

Factors of 13028638720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 1177

Divisors of 13028638720

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 128 157 160 256 314 320 512 628 640 785 1013 1024 1256 1280 1570 2026 2048 2512 2560 3140 4052 4096 5024 5065 5120 6280 8104 8192 10048 10130 10240 12560 16208 16384 20096 20260 20480 25120 32416 40192 40520 40960 50240 64832 80384 81040 81920 100480 129664 159041 160768 162080 200960 259328 318082 321536 324160 401920 518656 636164 643072 648320 795205 803840 1037312 1272328 1286144 1296640 1590410 1607680 2074624 2544656 2572288 2593280 3180820 3215360 4149248 5089312 5186560 6361640 6430720 8298496 10178624 10373120 12723280 12861440 16596992 20357248 20746240 25446560 40714496 41492480 50893120 81428992 82984960 101786240 162857984 203572480 325715968 407144960 651431936 814289920 1302863872 1628579840 2605727744 3257159680 6514319360 13028638720
• Sum of all divisors σ(n): 31497999624
• Sum of proper divisors (its aliquot sum) s(n): 18469360904
• 13028638720 is an abundant number, because the sum of its proper divisors (18469360904) is greater than itself. Its abundance is 5440722184

Bases of 13028638720

• Binary: 1100001000100100010100000000000000₂
• Hexadecimal: 0x308914000
• Base-36: 5ZGWXZ4

Squares and roots of 13028638720

• 13028638720 squared (13028638720²) is 169745426896283238400
• 13028638720 cubed (13028638720³) is 2211551841403845223905230848000
• The square root of 13028638720 is 114143.0625136717
• The cube root of 13028638720 is 2353.0600679061

Scales and comparisons

• 13,028,638,720 seconds is equal to 414 years, 14 weeks, 10 hours, 18 minutes, 40 seconds.
• To count from 1 to 13,028,638,720 would take you about eight hundred twenty-eight 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 13028638720 cubic inches would be around 196.1 feet tall.

Recreational maths with 13028638720

• 13028638720 backwards is 02783682031
• 13028638720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13028638720's digits is 40
• More coming soon!