21047520032

Names of 21047520032

• Cardinal: 21047520032 can be written as Twenty-one billion, forty-seven million, five hundred twenty thousand and thirty-two.

Scientific notation

• Scientific notation: 2.1047520032 × 10¹⁰

Factors of 21047520032

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 915

Divisors of 21047520032

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 32 44 56 61 77 88 112 122 154 176 224 233 244 308 352 427 466 488 601 616 671 854 932 976 1202 1232 1342 1631 1708 1864 1952 2404 2464 2563 2684 3262 3416 3728 4207 4697 4808 5126 5368 6524 6611 6832 7456 8414 9394 9616 10252 10736 13048 13222 13664 14213 16828 17941 18788 19232 20504 21472 26096 26444 28426 33656 35882 36661 37576 41008 46277 52192 52888 56852 67312 71764 73322 75152 82016 92554 99491 105776 113704 134624 140033 143528 146644 150304 156343 185108 198982 211552 227408 256627 280066 287056 293288 312686 370216 397964 403271 454816 513254 560132 574112 586576 625372 740432 795928 806542 980231 1026508 1094401 1120264 1173152 1250744 1480864 1540363 1591856 1613084 1960462 2053016 2188802 2240528 2501488 2822897 3080726 3183712 3226168 3920924 4106032 4377604 4481056 5002976 5645794 6161452 6452336 7841848 8212064 8542013 8755208 10782541 11291588 12322904 12904672 15683696 17084026 17510416 21565082 22583176 24645808 31367392 34168052 35020832 43130164 45166352 49291616 59794091 68336104 86260328 90332704 93962143 119588182 136672208 172520656 187924286 239176364 273344416 345041312 375848572 478352728 657735001 751697144 956705456 1315470002 1503394288 1913410912 2630940004 3006788576 5261880008 10523760016 21047520032
• Sum of all divisors σ(n): 52822119168
• Sum of proper divisors (its aliquot sum) s(n): 31774599136
• 21047520032 is an abundant number, because the sum of its proper divisors (31774599136) is greater than itself. Its abundance is 10727079104

Bases of 21047520032

• Binary: 10011100110100001111010101100100000₂
• Hexadecimal: 0x4E687AB20
• Base-36: 9O35EE8

Squares and roots of 21047520032

• 21047520032 squared (21047520032²) is 442998099497441281024
• 21047520032 cubed (21047520032³) is 9324011373310324495096381472768
• The square root of 21047520032 is 145077.6344996015
• The cube root of 21047520032 is 2761.0036271623

Scales and comparisons

• 21,047,520,032 seconds is equal to 669 years, 12 weeks, 5 days, 13 hours, 20 minutes, 32 seconds.
• To count from 1 to 21,047,520,032 would take you about one thousand, three hundred thirty-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 21047520032 cubic inches would be around 230.1 feet tall.

Recreational maths with 21047520032

• 21047520032 backwards is 23002574012
• The number of decimal digits it has is: 11
• The sum of 21047520032's digits is 26
• More coming soon!