31428198400

Names of 31428198400

• Cardinal: 31428198400 can be written as Thirty-one billion, four hundred twenty-eight million, one hundred ninety-eight thousand, four hundred.

Scientific notation

• Scientific notation: 3.14281984 × 10¹⁰

Factors of 31428198400

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 284

Divisors of 31428198400

• Number of divisors d(n): 135
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 256 277 320 400 512 554 640 800 1024 1108 1280 1385 1600 2048 2216 2560 2770 3200 4096 4432 5120 5540 6400 6925 8192 8864 10240 11080 12800 13850 16384 17728 20480 22160 25600 27700 35456 40960 44320 51200 55400 70912 76729 81920 88640 102400 110800 141824 153458 177280 204800 221600 283648 306916 354560 383645 409600 443200 567296 613832 709120 767290 886400 1134592 1227664 1418240 1534580 1772800 1918225 2269184 2455328 2836480 3069160 3545600 3836450 4538368 4910656 5672960 6138320 7091200 7672900 9821312 11345920 12276640 14182400 15345800 19642624 22691840 24553280 28364800 30691600 39285248 49106560 56729600 61383200 78570496 98213120 113459200 122766400 157140992 196426240 245532800 314281984 392852480 491065600 628563968 785704960 982131200 1257127936 1571409920 1964262400 3142819840 3928524800 6285639680 7857049600 15714099200 31428198400
• Sum of all divisors σ(n): 78221939439
• Sum of proper divisors (its aliquot sum) s(n): 46793741039
• 31428198400 is an abundant number, because the sum of its proper divisors (46793741039) is greater than itself. Its abundance is 15365542639

Bases of 31428198400

• Binary: 11101010001010001000100000000000000₂
• Hexadecimal: 0x751444000
• Base-36: EFRJD34

Squares and roots of 31428198400

• 31428198400 squared (31428198400²) is 987731654669762560000
• 31428198400 cubed (31428198400³) is 31042626408921584216571904000000
• 31428198400 is a perfect square number. Its square root is 177280
• The cube root of 31428198400 is 3155.7783715647

Scales and comparisons

• 31,428,198,400 seconds is equal to 999 years, 16 weeks, 4 days, 7 hours, 6 minutes, 40 seconds.
• To count from 1 to 31,428,198,400 would take you about one thousand, nine hundred ninety-eight 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 31428198400 cubic inches would be around 263 feet tall.

Recreational maths with 31428198400

• 31428198400 backwards is 00489182413
• 31428198400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31428198400's digits is 40
• More coming soon!