2991431872

Names of 2991431872

• Cardinal: 2991431872 can be written as Two billion, nine hundred ninety-one million, four hundred thirty-one thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 2.991431872 × 10⁹

Factors of 2991431872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1388

Divisors of 2991431872

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 8 11 13 16 22 26 32 44 52 64 88 104 143 176 208 286 311 352 416 572 622 704 832 1051 1144 1244 2102 2288 2488 3421 4043 4204 4576 4976 6842 8086 8408 9152 9952 11561 13663 13684 16172 16816 19904 23122 27326 27368 32344 33632 44473 46244 54652 54736 64688 67264 88946 92488 109304 109472 129376 150293 177892 184976 218608 218944 258752 300586 326861 355784 369952 437216 601172 653722 711568 739904 874432 1202344 1307444 1423136 2404688 2614888 2846272 3595471 4249193 4809376 5229776 7190942 8498386 9618752 10459552 14381884 16996772 20919104 28763768 33993544 46741123 57527536 67987088 93482246 115055072 135974176 186964492 230110144 271948352 373928984 747857968 1495715936 2991431872
• Sum of all divisors σ(n): 7002987264
• Sum of proper divisors (its aliquot sum) s(n): 4011555392
• 2991431872 is an abundant number, because the sum of its proper divisors (4011555392) is greater than itself. Its abundance is 1020123520

Bases of 2991431872

• Binary: 10110010010011011010000011000000₂
• Hexadecimal: 0xB24DA0C0
• Base-36: 1DH0RLS

Squares and roots of 2991431872

• 2991431872 squared (2991431872²) is 8948664644817424384
• 2991431872 cubed (2991431872³) is 26769320630346402923247566848
• The square root of 2991431872 is 54693.9838739143
• The cube root of 2991431872 is 1440.8752189709

Scales and comparisons

• 2,991,431,872 seconds is equal to 95 years, 6 weeks, 1 day, 1 hour, 17 minutes, 52 seconds.
• To count from 1 to 2,991,431,872 would take you about one hundred ninety 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 2991431872 cubic inches would be around 120.1 feet tall.

Recreational maths with 2991431872

• 2991431872 backwards is 2781341992
• The number of decimal digits it has is: 10
• The sum of 2991431872's digits is 46
• More coming soon!