21035621430

Names of 21035621430

• Cardinal: 21035621430 can be written as Twenty-one billion, thirty-five million, six hundred twenty-one thousand, four hundred thirty.

Scientific notation

• Scientific notation: 2.103562143 × 10¹⁰

Factors of 21035621430

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1366866

Divisors of 21035621430

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 19 27 30 38 45 54 57 81 90 95 114 135 162 171 190 270 285 342 405 513 570 810 855 1026 1539 1710 2565 3078 5130 7695 15390 1366837 2733674 4100511 6834185 8201022 12301533 13668370 20502555 24603066 25969903 36904599 41005110 51939806 61507665 73809198 77909709 110713797 123015330 129849515 155819418 184522995 221427594 233729127 259699030 369045990 389548545 467458254 553568985 701187381 779097090 1107137970 1168645635 1402374762 2103562143 2337291270 3505936905 4207124286 7011873810 10517810715 21035621430
• Sum of all divisors σ(n): 59539463280
• Sum of proper divisors (its aliquot sum) s(n): 38503841850
• 21035621430 is an abundant number, because the sum of its proper divisors (38503841850) is greater than itself. Its abundance is 17468220420

Bases of 21035621430

• Binary: 10011100101110100100001110000110110₂
• Hexadecimal: 0x4E5D21C36
• Base-36: 9NW2DDI

Squares and roots of 21035621430

• 21035621430 squared (21035621430²) is 442497368946275244900
• 21035621430 cubed (21035621430³) is 9308207136924884060296938207000
• The square root of 21035621430 is 145036.6209962159
• The cube root of 21035621430 is 2760.4832447795

Scales and comparisons

• 21,035,621,430 seconds is equal to 668 years, 45 weeks, 20 hours, 10 minutes, 30 seconds.
• To count from 1 to 21,035,621,430 would take you about one thousand, three hundred thirty-seven 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 21035621430 cubic inches would be around 230 feet tall.

Recreational maths with 21035621430

• 21035621430 backwards is 03412653012
• 21035621430 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21035621430's digits is 27
• More coming soon!