12738816

Names of 12738816

• Cardinal: 12738816 can be written as Twelve million, seven hundred thirty-eight thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.2738816 × 10⁷

Factors of 12738816

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 121

Divisors of 12738816

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 24 27 32 36 38 48 54 57 64 72 76 96 97 108 114 128 144 152 171 192 194 216 228 256 288 291 304 342 384 388 432 456 513 576 582 608 684 768 776 864 873 912 1026 1152 1164 1216 1368 1552 1728 1746 1824 1843 2052 2304 2328 2432 2619 2736 3104 3456 3492 3648 3686 4104 4656 4864 5238 5472 5529 6208 6912 6984 7296 7372 8208 9312 10476 10944 11058 12416 13968 14592 14744 16416 16587 18624 20952 21888 22116 24832 27936 29488 32832 33174 37248 41904 43776 44232 49761 55872 58976 65664 66348 74496 83808 88464 99522 111744 117952 131328 132696 167616 176928 199044 223488 235904 265392 335232 353856 398088 471808 530784 670464 707712 796176 1061568 1415424 1592352 2123136 3184704 4246272 6369408 12738816
• Sum of all divisors σ(n): 40062400
• Sum of proper divisors (its aliquot sum) s(n): 27323584
• 12738816 is an abundant number, because the sum of its proper divisors (27323584) is greater than itself. Its abundance is 14584768

Bases of 12738816

• Binary: 110000100110000100000000₂
• Hexadecimal: 0xC26100
• Base-36: 7L1C0

Squares and roots of 12738816

• 12738816 squared (12738816²) is 162277433081856
• 12738816 cubed (12738816³) is 2067222360982076522496
• The square root of 12738816 is 3569.1477974441
• The cube root of 12738816 is 233.5481088217

Scales and comparisons

• 12,738,816 seconds is equal to 21 weeks, 10 hours, 33 minutes, 36 seconds.
• To count from 1 to 12,738,816 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 12738816 cubic inches would be around 19.5 feet tall.

Recreational maths with 12738816

• 12738816 backwards is 61883721
• 12738816 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 12738816's digits is 36
• More coming soon!