21507534328

Names of 21507534328

• Cardinal: 21507534328 can be written as Twenty-one billion, five hundred seven million, five hundred thirty-four thousand, three hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1507534328 × 10¹⁰

Factors of 21507534328

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 434

Divisors of 21507534328

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 7 8 14 28 41 49 56 82 98 127 164 196 254 257 287 328 392 508 514 574 889 1016 1028 1148 1681 1778 1799 2009 2056 2296 3362 3556 3598 4018 5207 6223 6724 7112 7196 8036 10414 10537 11767 12446 12593 13448 14392 16072 20828 21074 23534 24892 25186 32639 36449 41656 42148 47068 49784 50372 65278 72898 73759 82369 84296 94136 100744 130556 145796 147518 164738 213487 228473 255143 261112 291592 295036 329476 426974 432017 456946 510286 516313 590072 658952 853948 864034 913892 1020572 1032626 1338199 1494409 1599311 1707896 1728068 1827784 2041144 2065252 2676398 2988818 3024119 3198622 3456136 4130504 5352796 5977636 6048238 6397244 9367393 10460863 10705592 11955272 12096476 12794488 18734786 20921726 21168833 24192952 37469572 41843452 42337666 54866159 65571751 74939144 83686904 84675332 109732318 131143502 169350664 219464636 262287004 384063113 438929272 524574008 768126226 1536252452 2688441791 3072504904 5376883582 10753767164 21507534328
• Sum of all divisors σ(n): 48649800960
• Sum of proper divisors (its aliquot sum) s(n): 27142266632
• 21507534328 is an abundant number, because the sum of its proper divisors (27142266632) is greater than itself. Its abundance is 5634732304

Bases of 21507534328

• Binary: 10100000001111100101110110111111000₂
• Hexadecimal: 0x501F2EDF8
• Base-36: 9VP13P4

Squares and roots of 21507534328

• 21507534328 squared (21507534328²) is 462574032870098411584
• 21507534328 cubed (21507534328³) is 9948826891195041951881152855552
• The square root of 21507534328 is 146654.4725809615
• The cube root of 21507534328 is 2780.9736565007

Scales and comparisons

• 21,507,534,328 seconds is equal to 683 years, 45 weeks, 2 days, 19 hours, 5 minutes, 28 seconds.
• To count from 1 to 21,507,534,328 would take you about one thousand, three hundred sixty-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 21507534328 cubic inches would be around 231.7 feet tall.

Recreational maths with 21507534328

• 21507534328 backwards is 82343570512
• The number of decimal digits it has is: 11
• The sum of 21507534328's digits is 40
• More coming soon!