28723773440

Names of 28723773440

• Cardinal: 28723773440 can be written as Twenty-eight billion, seven hundred twenty-three million, seven hundred seventy-three thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.872377344 × 10¹⁰

Factors of 28723773440

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 1117

Divisors of 28723773440

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 41 64 80 82 128 160 164 205 256 320 328 410 512 640 656 820 1024 1069 1280 1312 1640 2048 2138 2560 2624 3280 4096 4276 5120 5248 5345 6560 8192 8552 10240 10496 10690 13120 16384 17104 20480 20992 21380 26240 32768 34208 40960 41984 42760 43829 52480 65536 68416 81920 83968 85520 87658 104960 131072 136832 163840 167936 171040 175316 209920 219145 273664 327680 335872 342080 350632 419840 438290 547328 655360 671744 684160 701264 839680 876580 1094656 1343488 1368320 1402528 1679360 1753160 2189312 2686976 2736640 2805056 3358720 3506320 4378624 5373952 5473280 5610112 6717440 7012640 8757248 10946560 11220224 13434880 14025280 17514496 21893120 22440448 26869760 28050560 35028992 43786240 44880896 56101120 70057984 87572480 89761792 112202240 140115968 175144960 179523584 224404480 350289920 359047168 448808960 700579840 718094336 897617920 1436188672 1795235840 2872377344 3590471680 5744754688 7180943360 14361886720 28723773440
• Sum of all divisors σ(n): 70684238520
• Sum of proper divisors (its aliquot sum) s(n): 41960465080
• 28723773440 is an abundant number, because the sum of its proper divisors (41960465080) is greater than itself. Its abundance is 13236691640

Bases of 28723773440

• Binary: 11010110000000100100000000000000000₂
• Hexadecimal: 0x6B0120000
• Base-36: D71E5FK

Squares and roots of 28723773440

• 28723773440 squared (28723773440²) is 825055160632449433600
• 28723773440 cubed (28723773440³) is 23698697509509284642982723584000
• The square root of 28723773440 is 169480.8940264359
• The cube root of 28723773440 is 3062.5310285125

Scales and comparisons

• 28,723,773,440 seconds is equal to 913 years, 17 weeks, 1 hour, 57 minutes, 20 seconds.
• To count from 1 to 28,723,773,440 would take you about one thousand, eight hundred twenty-six 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 28723773440 cubic inches would be around 255.2 feet tall.

Recreational maths with 28723773440

• 28723773440 backwards is 04437732782
• The number of decimal digits it has is: 11
• The sum of 28723773440's digits is 47
• More coming soon!