68421888

Names of 68421888

• Cardinal: 68421888 can be written as Sixty-eight million, four hundred twenty-one thousand, eight hundred eighty-eight.

Scientific notation

• Scientific notation: 6.8421888 × 10⁷

Factors of 68421888

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 545

Divisors of 68421888

• 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 96 108 114 128 144 152 171 192 216 228 256 288 304 342 384 432 456 513 521 576 608 684 768 864 912 1026 1042 1152 1216 1368 1563 1728 1824 2052 2084 2304 2432 2736 3126 3456 3648 4104 4168 4689 4864 5472 6252 6912 7296 8208 8336 9378 9899 10944 12504 14067 14592 16416 16672 18756 19798 21888 25008 28134 29697 32832 33344 37512 39596 43776 50016 56268 59394 65664 66688 75024 79192 89091 100032 112536 118788 131328 133376 150048 158384 178182 200064 225072 237576 267273 300096 316768 356364 400128 450144 475152 534546 600192 633536 712728 900288 950304 1069092 1200384 1267072 1425456 1800576 1900608 2138184 2534144 2850912 3601152 3801216 4276368 5701824 7602432 8552736 11403648 17105472 22807296 34210944 68421888
• Sum of all divisors σ(n): 213393600
• Sum of proper divisors (its aliquot sum) s(n): 144971712
• 68421888 is an abundant number, because the sum of its proper divisors (144971712) is greater than itself. Its abundance is 76549824

Bases of 68421888

• Binary: 100000101000000100100000000₂
• Hexadecimal: 0x4140900
• Base-36: 14QIO0

Squares and roots of 68421888

• 68421888 squared (68421888²) is 4681554757484544
• 68421888 cubed (68421888³) is 320320815282474631299072
• The square root of 68421888 is 8271.7524140897
• The cube root of 68421888 is 409.0078887693

Scales and comparisons

• 68,421,888 seconds is equal to 2 years, 9 weeks, 22 hours, 4 minutes, 48 seconds.
• To count from 1 to 68,421,888 would take you about three 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 68421888 cubic inches would be around 34.1 feet tall.

Recreational maths with 68421888

• 68421888 backwards is 88812486
• The number of decimal digits it has is: 8
• The sum of 68421888's digits is 45
• More coming soon!