21396373180

Names of 21396373180

• Cardinal: 21396373180 can be written as Twenty-one billion, three hundred ninety-six million, three hundred seventy-three thousand, one hundred eighty.

Scientific notation

• Scientific notation: 2.139637318 × 10¹⁰

Factors of 21396373180

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 79077

Divisors of 21396373180

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 149 182 260 298 364 455 596 745 910 1043 1490 1820 1937 2086 2980 3874 4172 5215 7748 9685 10430 13559 19370 20860 27118 38740 54236 67795 78901 135590 157802 271180 315604 394505 552307 789010 1025713 1104614 1578020 2051426 2209228 2761535 4102852 5128565 5523070 7179991 10257130 11046140 11756249 14359982 20514260 23512498 28719964 35899955 47024996 58781245 71799910 82293743 117562490 143599820 152831237 164587486 235124980 305662474 329174972 411468715 611324948 764156185 822937430 1069818659 1528312370 1645874860 2139637318 3056624740 4279274636 5349093295 10698186590 21396373180
• Sum of all divisors σ(n): 55673251200
• Sum of proper divisors (its aliquot sum) s(n): 34276878020
• 21396373180 is an abundant number, because the sum of its proper divisors (34276878020) is greater than itself. Its abundance is 12880504840

Bases of 21396373180

• Binary: 10011111011010100101011111010111100₂
• Hexadecimal: 0x4FB52BEBC
• Base-36: 9TUUJ7G

Squares and roots of 21396373180

• 21396373180 squared (21396373180²) is 457804785257823312400
• 21396373180 cubed (21396373180³) is 9795362028966150106614121432000
• The square root of 21396373180 is 146274.9916424541
• The cube root of 21396373180 is 2776.1742477349

Scales and comparisons

• 21,396,373,180 seconds is equal to 680 years, 17 weeks, 4 days, 4 hours, 59 minutes, 40 seconds.
• To count from 1 to 21,396,373,180 would take you about one thousand, three hundred sixty 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 21396373180 cubic inches would be around 231.3 feet tall.

Recreational maths with 21396373180

• 21396373180 backwards is 08137369312
• The number of decimal digits it has is: 11
• The sum of 21396373180's digits is 43
• More coming soon!