400128754752

Names of 400128754752

• Cardinal: 400128754752 can be written as Four hundred billion, one hundred twenty-eight million, seven hundred fifty-four thousand, seven hundred fifty-two.

Scientific notation

• Scientific notation: 4.00128754752 × 10¹¹

Factors of 400128754752

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 507327

Divisors of 400128754752

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 576 1373 2746 4119 5492 8238 10984 12357 16476 21968 24714 32952 43936 49428 65904 87872 98856 131808 197712 263616 395424 505949 790848 1011898 1517847 2023796 3035694 4047592 4553541 6071388 8095184 9107082 12142776 16190368 18214164 24285552 32380736 36428328 48571104 72856656 97142208 145713312 291426624 694667977 1389335954 2084003931 2778671908 4168007862 5557343816 6252011793 8336015724 11114687632 12504023586 16672031448 22229375264 25008047172 33344062896 44458750528 50016094344 66688125792 100032188688 133376251584 200064377376 400128754752
• Sum of all divisors σ(n): 1147734420300
• Sum of proper divisors (its aliquot sum) s(n): 747605665548
• 400128754752 is an abundant number, because the sum of its proper divisors (747605665548) is greater than itself. Its abundance is 347476910796

Bases of 400128754752

• Binary: 101110100101001100010000100010001000000₂
• Hexadecimal: 0x5D29884440
• Base-36: 53TEBV40

Squares and roots of 400128754752

• 400128754752 squared (400128754752²) is 160103020379386162581504
• 400128754752 cubed (400128754752³) is 64061822176437863843877013227307008
• The square root of 400128754752 is 632557.3134127847
• The cube root of 400128754752 is 7368.8534734089

Scales and comparisons

• 400,128,754,752 seconds is equal to 12,722 years, 44 weeks, 3 days, 20 hours, 19 minutes, 12 seconds.
• To count from 1 to 400,128,754,752 would take you about twenty-five thousand, four hundred forty-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 400128754752 cubic inches would be around 614.1 feet tall.

Recreational maths with 400128754752

• 400128754752 backwards is 257457821004
• The number of decimal digits it has is: 12
• The sum of 400128754752's digits is 45
• More coming soon!