31327928640

Names of 31327928640

• Cardinal: 31327928640 can be written as Thirty-one billion, three hundred twenty-seven million, nine hundred twenty-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 3.132792864 × 10¹⁰

Factors of 31327928640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 253024

Divisors of 31327928640

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 43 45 48 60 64 72 80 86 90 96 120 129 144 160 172 180 192 215 240 258 288 320 344 360 387 430 480 516 576 645 688 720 774 860 960 1032 1290 1376 1440 1548 1720 1935 2064 2580 2752 2880 3096 3440 3870 4128 5160 6192 6880 7740 8256 10320 12384 13760 15480 20640 24768 30960 41280 61920 123840 252971 505942 758913 1011884 1264855 1517826 2023768 2276739 2529710 3035652 3794565 4047536 4553478 5059420 6071304 7589130 8095072 9106956 10118840 10877753 11383695 12142608 15178260 16190144 18213912 20237680 21755506 22767390 24285216 30356520 32633259 36427824 40475360 43511012 45534780 48570432 54388765 60713040 65266518 72855648 80950720 87022024 91069560 97899777 108777530 121426080 130533036 145711296 163166295 174044048 182139120 195799554 217555060 242852160 261066072 326332590 348088096 364278240 391599108 435110120 489498885 522132144 652665180 696176192 728556480 783198216 870220240 978997770 1044264288 1305330360 1566396432 1740440480 1957995540 2088528576 2610660720 3132792864 3480880960 3915991080 5221321440 6265585728 7831982160 10442642880 15663964320 31327928640
• Sum of all divisors σ(n): 110261387808
• Sum of proper divisors (its aliquot sum) s(n): 78933459168
• 31327928640 is an abundant number, because the sum of its proper divisors (78933459168) is greater than itself. Its abundance is 47605530528

Bases of 31327928640

• Binary: 11101001011010010100100000101000000₂
• Hexadecimal: 0x74B4A4140
• Base-36: EE3U8G0

Squares and roots of 31327928640

• 31327928640 squared (31327928640²) is 981439112872932249600
• 31327928640 cubed (31327928640³) is 30746454492588126903023468544000
• The square root of 31327928640 is 176996.9735334479
• The cube root of 31327928640 is 3152.4186896041

Scales and comparisons

• 31,327,928,640 seconds is equal to 996 years, 6 weeks, 5 days, 18 hours, 24 minutes.
• To count from 1 to 31,327,928,640 would take you about one thousand, nine hundred ninety-two 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 31327928640 cubic inches would be around 262.7 feet tall.

Recreational maths with 31327928640

• 31327928640 backwards is 04682972313
• 31327928640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31327928640's digits is 45
• More coming soon!