21208828432

Names of 21208828432

• Cardinal: 21208828432 can be written as Twenty-one billion, two hundred eight million, eight hundred twenty-eight thousand, four hundred thirty-two.

Scientific notation

• Scientific notation: 2.1208828432 × 10¹⁰

Factors of 21208828432

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 867

Divisors of 21208828432

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 8 11 16 19 22 38 44 61 76 88 122 152 173 176 209 244 304 346 418 488 601 671 692 836 976 1159 1202 1342 1384 1672 1903 2318 2404 2684 2768 3287 3344 3806 4636 4808 5368 6574 6611 7612 9272 9616 10553 10736 11419 12749 13148 13222 15224 18544 21106 22838 25498 26296 26444 30448 36157 36661 42212 45676 50996 52592 52888 72314 73322 84424 91352 101992 103973 105776 116083 125609 144628 146644 168848 182704 200507 203984 207946 232166 251218 289256 293288 401014 403271 415892 464332 502436 578512 586576 696559 802028 806542 831784 928664 1004872 1143703 1393118 1604056 1613084 1663568 1857328 1975487 2009744 2205577 2287406 2786236 3208112 3226168 3950974 4411154 4574812 5572472 6342353 6452336 7662149 7901948 8822308 9149624 11144944 12684706 15324298 15803896 17644616 18299248 21730357 25369412 30648596 31607792 35289232 43460714 50738824 61297192 69765883 86921428 101477648 120504707 122594384 139531766 173842856 241009414 279063532 347685712 482018828 558127064 964037656 1116254128 1325551777 1928075312 2651103554 5302207108 10604414216 21208828432
• Sum of all divisors σ(n): 48318157440
• Sum of proper divisors (its aliquot sum) s(n): 27109329008
• 21208828432 is an abundant number, because the sum of its proper divisors (27109329008) is greater than itself. Its abundance is 5900500576

Bases of 21208828432

• Binary: 10011110000001001010000101000010000₂
• Hexadecimal: 0x4F0250A10
• Base-36: 9QR6SR4

Squares and roots of 21208828432

• 21208828432 squared (21208828432²) is 449814403458011578624
• 21208828432 cubed (21208828432³) is 9540036509183395086905894637568
• The square root of 21208828432 is 145632.5115899605
• The cube root of 21208828432 is 2768.0391372115

Scales and comparisons

• 21,208,828,432 seconds is equal to 674 years, 19 weeks, 3 days, 13 hours, 13 minutes, 52 seconds.
• To count from 1 to 21,208,828,432 would take you about one thousand, three hundred forty-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 21208828432 cubic inches would be around 230.7 feet tall.

Recreational maths with 21208828432

• 21208828432 backwards is 23482880212
• The number of decimal digits it has is: 11
• The sum of 21208828432's digits is 40
• More coming soon!