21148567792

Names of 21148567792

• Cardinal: 21148567792 can be written as Twenty-one billion, one hundred forty-eight million, five hundred sixty-seven thousand, seven hundred ninety-two.

Scientific notation

• Scientific notation: 2.1148567792 × 10¹⁰

Factors of 21148567792

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 281

Divisors of 21148567792

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 8 11 16 22 44 71 88 121 142 176 197 242 284 394 484 568 781 788 968 1136 1331 1562 1576 1936 2167 2662 3124 3152 4334 5041 5324 6248 8591 8668 10082 10648 12496 13987 17182 17336 20164 21296 23837 27974 34364 34672 40328 47674 55451 55948 68728 80656 94501 95348 110902 111896 137456 153857 189002 190696 221804 223792 262207 307714 378004 381392 443608 524414 609961 615428 756008 887216 993077 1048828 1219922 1230856 1512016 1692427 1986154 2097656 2439844 2461712 3384854 3972308 4195312 4879688 6709571 6769708 7944616 9759376 10923847 13419142 13539416 15889232 18616697 21847694 26838284 27078832 37233394 43695388 53676568 74466788 87390776 107353136 120162317 148933576 174781552 240324634 297867152 480649268 961298536 1321785487 1922597072 2643570974 5287141948 10574283896 21148567792
• Sum of all divisors σ(n): 45945581616
• Sum of proper divisors (its aliquot sum) s(n): 24797013824
• 21148567792 is an abundant number, because the sum of its proper divisors (24797013824) is greater than itself. Its abundance is 3648446032

Bases of 21148567792

• Binary: 10011101100100011011000100011110000₂
• Hexadecimal: 0x4EC8D88F0
• Base-36: 9PRB7CG

Squares and roots of 21148567792

• 21148567792 squared (21148567792²) is 447261919652819755264
• 21148567792 cubed (21148567792³) is 9458949028557715698157552857088
• The square root of 21148567792 is 145425.4716065931
• The cube root of 21148567792 is 2765.4150406753

Scales and comparisons

• 21,148,567,792 seconds is equal to 672 years, 23 weeks, 6 days, 2 hours, 9 minutes, 52 seconds.
• To count from 1 to 21,148,567,792 would take you about one thousand, three hundred forty-four 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 21148567792 cubic inches would be around 230.5 feet tall.

Recreational maths with 21148567792

• 21148567792 backwards is 29776584112
• The number of decimal digits it has is: 11
• The sum of 21148567792's digits is 52
• More coming soon!