12551431840

Names of 12551431840

• Cardinal: 12551431840 can be written as Twelve billion, five hundred fifty-one million, four hundred thirty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.255143184 × 10¹⁰

Factors of 12551431840

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 545

Divisors of 12551431840

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 5 8 10 16 17 20 32 34 40 68 80 85 136 160 170 272 289 340 521 544 578 680 1042 1156 1360 1445 2084 2312 2605 2720 2890 4168 4624 5210 5780 8336 8857 9248 10420 11560 16672 17714 20840 23120 35428 41680 44285 46240 70856 83360 88570 141712 150569 177140 271441 283424 301138 354280 542882 602276 708560 752845 1085764 1204552 1357205 1417120 1505690 2171528 2409104 2714410 3011380 4343056 4614497 4818208 5428820 6022760 8686112 9228994 10857640 12045520 18457988 21715280 23072485 24091040 36915976 43430560 46144970 73831952 78446449 92289940 147663904 156892898 184579880 313785796 369159760 392232245 627571592 738319520 784464490 1255143184 1568928980 2510286368 3137857960 6275715920 12551431840
• Sum of all divisors σ(n): 31560218298
• Sum of proper divisors (its aliquot sum) s(n): 19008786458
• 12551431840 is an abundant number, because the sum of its proper divisors (19008786458) is greater than itself. Its abundance is 6457354618

Bases of 12551431840

• Binary: 1011101100000111111010011010100000₂
• Hexadecimal: 0x2EC1FA6A0
• Base-36: 5RKSQSG

Squares and roots of 12551431840

• 12551431840 squared (12551431840²) is 157538441234165785600
• 12551431840 cubed (12551431840³) is 1977333007330477337218453504000
• The square root of 12551431840 is 112033.1729444455
• The cube root of 12551431840 is 2323.9730672717

Scales and comparisons

• 12,551,431,840 seconds is equal to 399 years, 5 weeks, 4 hours, 50 minutes, 40 seconds.
• To count from 1 to 12,551,431,840 would take you about seven 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 12551431840 cubic inches would be around 193.7 feet tall.

Recreational maths with 12551431840

• 12551431840 backwards is 04813415521
• 12551431840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12551431840's digits is 34
• More coming soon!