21488711998

Names of 21488711998

• Cardinal: 21488711998 can be written as Twenty-one billion, four hundred eighty-eight million, seven hundred eleven thousand, nine hundred ninety-eight.

Scientific notation

• Scientific notation: 2.1488711998 × 10¹⁰

Factors of 21488711998

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 88

Divisors of 21488711998

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 13 19 23 26 31 38 46 62 169 247 299 338 361 403 437 494 589 598 713 722 806 874 1178 1426 2197 3211 3887 4394 4693 5239 5681 6422 6859 7657 7774 8303 9269 9386 10478 11191 11362 13547 13718 15314 16606 18538 22382 27094 41743 50531 61009 68107 73853 83486 89167 99541 101062 107939 120497 122018 136214 145483 147706 157757 176111 178334 199082 212629 215878 240994 257393 290966 315514 352222 425258 514786 793117 960089 1159171 1294033 1403207 1566461 1586234 1891279 1920178 2050841 2289443 2318342 2588066 2764177 2806414 3132922 3346109 3782558 4101682 4578886 4890467 5528354 6692218 9780934 15069223 18241691 24586627 26660933 29762759 30138446 35934301 36483382 43499417 49173254 53321866 59525518 63576071 71868602 86998834 127152142 346592129 467145913 565492421 693184258 826488923 934291826 1130984842 1652977846 10744355999 21488711998
• Sum of all divisors σ(n): 39700684800
• Sum of proper divisors (its aliquot sum) s(n): 18211972802
• 21488711998 is a deficient number, because the sum of its proper divisors (18211972802) is less than itself. Its deficiency is 3276739196

Bases of 21488711998

• Binary: 10100000000110100111011100100111110₂
• Hexadecimal: 0x500D3B93E
• Base-36: 9VDTOAM

Squares and roots of 21488711998

• 21488711998 squared (21488711998²) is 461764743332989152004
• 21488711998 cubed (21488711998³) is 9922729580312994499872200543992
• The square root of 21488711998 is 146590.2861652163
• The cube root of 21488711998 is 2780.1621628747

Scales and comparisons

• 21,488,711,998 seconds is equal to 683 years, 14 weeks, 1 day, 22 hours, 39 minutes, 58 seconds.
• To count from 1 to 21,488,711,998 would take you about one thousand, three hundred sixty-six 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 21488711998 cubic inches would be around 231.7 feet tall.

Recreational maths with 21488711998

• 21488711998 backwards is 89911788412
• The number of decimal digits it has is: 11
• The sum of 21488711998's digits is 58
• More coming soon!