21106425816

Names of 21106425816

• Cardinal: 21106425816 can be written as Twenty-one billion, one hundred six million, four hundred twenty-five thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 2.1106425816 × 10¹⁰

Factors of 21106425816

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 428

Divisors of 21106425816

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 43 49 56 63 72 84 86 98 126 129 147 168 172 196 252 258 294 301 344 373 387 392 441 504 516 588 602 746 774 882 903 1032 1119 1176 1204 1492 1548 1764 1806 2107 2238 2408 2611 2709 2984 3096 3357 3528 3612 4214 4476 5222 5418 6321 6714 7224 7833 8428 8952 10444 10836 12642 13428 15666 16039 16856 18277 18963 20888 21672 23499 25284 26856 31332 32078 36554 37926 46998 48117 50568 54831 62664 64156 73108 75852 93996 96234 109662 112273 128312 139129 144351 146216 151704 164493 187992 192468 219324 224546 278258 288702 328986 336819 384936 417387 438648 449092 556516 577404 657972 673638 785911 834774 898184 973903 1010457 1113032 1154808 1252161 1315944 1347276 1571822 1669548 1947806 2020914 2357733 2504322 2694552 2921709 3143644 3339096 3895612 4041828 4715466 5008644 5843418 5982547 6287288 6817321 7073199 7791224 8083656 8765127 9430932 10017288 11686836 11965094 13634642 14146398 17530254 17947641 18861864 20451963 23373672 23930188 27269284 28292796 35060508 35895282 40903926 41877829 47860376 53842923 54538568 56585592 61355889 70121016 71790564 81807852 83755658 107685846 122711778 125633487 143581128 163615704 167511316 215371692 245423556 251266974 293144803 335022632 376900461 430743384 490847112 502533948 586289606 753800922 879434409 1005067896 1172579212 1507601844 1758868818 2345158424 2638303227 3015203688 3517737636 5276606454 7035475272 10553212908 21106425816
• Sum of all divisors σ(n): 68225337180
• Sum of proper divisors (its aliquot sum) s(n): 47118911364
• 21106425816 is an abundant number, because the sum of its proper divisors (47118911364) is greater than itself. Its abundance is 26012485548

Bases of 21106425816

• Binary: 10011101010000010100111111111011000₂
• Hexadecimal: 0x4EA0A7FD8
• Base-36: 9P27YE0

Squares and roots of 21106425816

• 21106425816 squared (21106425816²) is 445481210726311265856
• 21106425816 cubed (21106425816³) is 9402516126616752212114717738496
• The square root of 21106425816 is 145280.5073504357
• The cube root of 21106425816 is 2763.5769721815

Scales and comparisons

• 21,106,425,816 seconds is equal to 671 years, 6 weeks, 1 day, 8 hours, 3 minutes, 36 seconds.
• To count from 1 to 21,106,425,816 would take you about one thousand, three hundred forty-two 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 21106425816 cubic inches would be around 230.3 feet tall.

Recreational maths with 21106425816

• 21106425816 backwards is 61852460112
• 21106425816 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21106425816's digits is 36
• More coming soon!