21528877572

Names of 21528877572

• Cardinal: 21528877572 can be written as Twenty-one billion, five hundred twenty-eight million, eight hundred seventy-seven thousand, five hundred seventy-two.

Scientific notation

• Scientific notation: 2.1528877572 × 10¹⁰

Factors of 21528877572

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 5435

Divisors of 21528877572

• Number of divisors d(n): 126
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 36 37 54 74 81 108 111 148 162 222 243 324 333 444 486 666 729 972 999 1332 1369 1458 1998 2738 2916 2997 3996 4107 5393 5476 5994 8214 8991 10786 11988 12321 16179 16428 17982 21572 24642 26973 32358 35964 36963 48537 49284 53946 64716 73926 97074 107892 110889 145611 147852 194148 199541 221778 291222 332667 399082 436833 443556 582444 598623 665334 798164 873666 998001 1197246 1310499 1330668 1747332 1795869 1996002 2394492 2620998 3591738 3931497 3992004 5241996 5387607 7183476 7383017 7862994 10775214 14766034 15725988 16162821 21550428 22149051 29532068 32325642 44298102 48488463 64651284 66447153 88596204 96976926 132894306 145465389 193953852 199341459 265788612 290930778 398682918 581861556 598024377 797365836 1196048754 1794073131 2392097508 3588146262 5382219393 7176292524 10764438786 21528877572
• Sum of all divisors σ(n): 58066178058
• Sum of proper divisors (its aliquot sum) s(n): 36537300486
• 21528877572 is an abundant number, because the sum of its proper divisors (36537300486) is greater than itself. Its abundance is 15008422914

Bases of 21528877572

• Binary: 10100000011001110001001101000000100₂
• Hexadecimal: 0x503389A04
• Base-36: 9W1QK90

Squares and roots of 21528877572

• 21528877572 squared (21528877572²) is 463492569510164615184
• 21528877572 cubed (21528877572³) is 9978474784516034009862828253248
• The square root of 21528877572 is 146727.2216461553
• The cube root of 21528877572 is 2781.8932625537

Scales and comparisons

• 21,528,877,572 seconds is equal to 684 years, 28 weeks, 4 days, 19 hours, 46 minutes, 12 seconds.
• To count from 1 to 21,528,877,572 would take you about one thousand, three hundred sixty-nine 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 21528877572 cubic inches would be around 231.8 feet tall.

Recreational maths with 21528877572

• 21528877572 backwards is 27577882512
• 21528877572 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21528877572's digits is 54
• More coming soon!