13215312

Names of 13215312

• Cardinal: 13215312 can be written as Thirteen million, two hundred fifteen thousand, three hundred twelve.

Scientific notation

• Scientific notation: 1.3215312 × 10⁷

Factors of 13215312

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 119

Divisors of 13215312

• Number of divisors d(n): 140
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 33 36 44 48 54 66 72 81 88 99 103 108 132 144 162 176 198 206 216 243 264 297 309 324 396 412 432 486 528 594 618 648 729 792 824 891 927 972 1133 1188 1236 1296 1458 1584 1648 1782 1854 1944 2266 2376 2472 2673 2781 2916 3399 3564 3708 3888 4532 4752 4944 5346 5562 5832 6798 7128 7416 8019 8343 9064 10197 10692 11124 11664 13596 14256 14832 16038 16686 18128 20394 21384 22248 25029 27192 30591 32076 33372 40788 42768 44496 50058 54384 61182 64152 66744 75087 81576 91773 100116 122364 128304 133488 150174 163152 183546 200232 244728 275319 300348 367092 400464 489456 550638 600696 734184 825957 1101276 1201392 1468368 1651914 2202552 3303828 4405104 6607656 13215312
• Sum of all divisors σ(n): 42285984
• Sum of proper divisors (its aliquot sum) s(n): 29070672
• 13215312 is an abundant number, because the sum of its proper divisors (29070672) is greater than itself. Its abundance is 15855360

Bases of 13215312

• Binary: 110010011010011001010000₂
• Hexadecimal: 0xC9A650
• Base-36: 7V900

Squares and roots of 13215312

• 13215312 squared (13215312²) is 174644471257344
• 13215312 cubed (13215312³) is 2307981176740833251328
• The square root of 13215312 is 3635.2870588167
• The cube root of 13215312 is 236.4244969331

Scales and comparisons

• 13,215,312 seconds is equal to 21 weeks, 5 days, 22 hours, 55 minutes, 12 seconds.
• To count from 1 to 13,215,312 would take you about thirty-two 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 13215312 cubic inches would be around 19.7 feet tall.

Recreational maths with 13215312

• 13215312 backwards is 21351231
• 13215312 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13215312's digits is 18
• More coming soon!