12851388

Names of 12851388

• Cardinal: 12851388 can be written as Twelve million, eight hundred fifty-one thousand, three hundred eighty-eight.

Scientific notation

• Scientific notation: 1.2851388 × 10⁷

Factors of 12851388

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 139

Divisors of 12851388

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 9 11 12 17 18 22 23 33 34 36 44 46 51 66 68 69 83 92 99 102 132 138 153 166 187 198 204 207 249 253 276 306 332 374 391 396 414 498 506 561 612 747 748 759 782 828 913 996 1012 1122 1173 1411 1494 1518 1564 1683 1826 1909 2244 2277 2346 2739 2822 2988 3036 3366 3519 3652 3818 4233 4301 4554 4692 5478 5644 5727 6732 7038 7636 8217 8466 8602 9108 10956 11454 12699 12903 14076 15521 16434 16932 17181 17204 20999 22908 25398 25806 31042 32453 32868 34362 38709 41998 46563 50796 51612 62084 62997 64906 68724 77418 83996 93126 97359 125994 129812 139689 154836 186252 188991 194718 251988 279378 292077 356983 377982 389436 558756 584154 713966 755964 1070949 1168308 1427932 2141898 3212847 4283796 6425694 12851388
• Sum of all divisors σ(n): 39626496
• Sum of proper divisors (its aliquot sum) s(n): 26775108
• 12851388 is an abundant number, because the sum of its proper divisors (26775108) is greater than itself. Its abundance is 13923720

Bases of 12851388

• Binary: 110001000001100010111100₂
• Hexadecimal: 0xC418BC
• Base-36: 7NG70

Squares and roots of 12851388

• 12851388 squared (12851388²) is 165158173526544
• 12851388 cubed (12851388³) is 2122511769360945243072
• The square root of 12851388 is 3584.8832616977
• The cube root of 12851388 is 234.2340415347

Scales and comparisons

• 12,851,388 seconds is equal to 21 weeks, 1 day, 17 hours, 49 minutes, 48 seconds.
• To count from 1 to 12,851,388 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 12851388 cubic inches would be around 19.5 feet tall.

Recreational maths with 12851388

• 12851388 backwards is 88315821
• 12851388 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 12851388's digits is 36
• More coming soon!