31380480

Names of 31380480

• Cardinal: 31380480 can be written as Thirty-one million, three hundred eighty thousand, four hundred eighty.

Scientific notation

• Scientific notation: 3.138048 × 10⁷

Factors of 31380480

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 237

Divisors of 31380480

• Number of divisors d(n): 176
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 128 135 144 160 180 192 216 227 240 256 270 288 320 360 384 432 454 480 512 540 576 640 681 720 768 864 908 960 1024 1080 1135 1152 1280 1362 1440 1536 1728 1816 1920 2043 2160 2270 2304 2560 2724 2880 3072 3405 3456 3632 3840 4086 4320 4540 4608 5120 5448 5760 6129 6810 6912 7264 7680 8172 8640 9080 9216 10215 10896 11520 12258 13620 13824 14528 15360 16344 17280 18160 20430 21792 23040 24516 27240 27648 29056 30645 32688 34560 36320 40860 43584 46080 49032 54480 58112 61290 65376 69120 72640 81720 87168 98064 108960 116224 122580 130752 138240 145280 163440 174336 196128 217920 232448 245160 261504 290560 326880 348672 392256 435840 490320 523008 581120 653760 697344 784512 871680 980640 1046016 1162240 1307520 1569024 1743360 1961280 2092032 2615040 3138048 3486720 3922560 5230080 6276096 7845120 10460160 15690240 31380480
• Sum of all divisors σ(n): 112011840
• Sum of proper divisors (its aliquot sum) s(n): 80631360
• 31380480 is an abundant number, because the sum of its proper divisors (80631360) is greater than itself. Its abundance is 49250880

Bases of 31380480

• Binary: 1110111101101010000000000₂
• Hexadecimal: 0x1DED400
• Base-36: IOLC0

Squares and roots of 31380480

• 31380480 squared (31380480²) is 984734525030400
• 31380480 cubed (31380480³) is 30901442068025966592000
• The square root of 31380480 is 5601.8282729837
• The cube root of 31380480 is 315.4180390759

Scales and comparisons

• 31,380,480 seconds is equal to 51 weeks, 6 days, 4 hours, 48 minutes.
• To count from 1 to 31,380,480 would take you about twenty-five 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 31380480 cubic inches would be around 26.3 feet tall.

Recreational maths with 31380480

• 31380480 backwards is 08408313
• 31380480 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 31380480's digits is 27
• More coming soon!