28389710440

Names of 28389710440

• Cardinal: 28389710440 can be written as Twenty-eight billion, three hundred eighty-nine million, seven hundred ten thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.838971044 × 10¹⁰

Factors of 28389710440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 11087

Divisors of 28389710440

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 20 26 28 35 40 52 56 65 70 91 104 130 140 182 260 280 364 455 520 728 757 910 1514 1820 3028 3640 3785 5299 6056 7570 9841 10303 10598 15140 19682 20606 21196 26495 30280 39364 41212 42392 49205 51515 52990 68887 72121 78728 82424 98410 103030 105980 133939 137774 144242 196820 206060 211960 267878 275548 288484 344435 360605 393640 412120 535756 551096 576968 669695 688870 721210 937573 1071512 1339390 1377740 1442420 1875146 2678780 2755480 2884840 3750292 4687865 5357560 7500584 7799371 9375730 15598742 18751460 31197484 37502920 38996855 54595597 62394968 77993710 101391823 109191194 155987420 202783646 218382388 272977985 311974840 405567292 436764776 506959115 545955970 709742761 811134584 1013918230 1091911940 1419485522 2027836460 2183823880 2838971044 3548713805 4055672920 5677942088 7097427610 14194855220 28389710440
• Sum of all divisors σ(n): 78729154560
• Sum of proper divisors (its aliquot sum) s(n): 50339444120
• 28389710440 is an abundant number, because the sum of its proper divisors (50339444120) is greater than itself. Its abundance is 21949733680

Bases of 28389710440

• Binary: 11010011100001010001001101001101000₂
• Hexadecimal: 0x69C289A68
• Base-36: D1II0RS

Squares and roots of 28389710440

• 28389710440 squared (28389710440²) is 805975658867044993600
• 28389710440 cubed (28389710440³) is 22881415576923625826755653184000
• The square root of 28389710440 is 168492.4640451317
• The cube root of 28389710440 is 3050.6120939403

Scales and comparisons

• 28,389,710,440 seconds is equal to 902 years, 36 weeks, 4 days, 14 hours, 40 minutes, 40 seconds.
• To count from 1 to 28,389,710,440 would take you about one thousand, eight hundred five 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 28389710440 cubic inches would be around 254.2 feet tall.

Recreational maths with 28389710440

• 28389710440 backwards is 04401798382
• The number of decimal digits it has is: 11
• The sum of 28389710440's digits is 46
• More coming soon!