21029583640

Names of 21029583640

• Cardinal: 21029583640 can be written as Twenty-one billion, twenty-nine million, five hundred eighty-three thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.102958364 × 10¹⁰

Factors of 21029583640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1633

Divisors of 21029583640

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 5 8 10 13 20 26 40 52 65 104 109 130 218 260 311 436 520 545 622 872 1090 1193 1244 1417 1555 2180 2386 2488 2834 3110 4043 4360 4772 5668 5965 6220 7085 8086 9544 11336 11930 12440 14170 15509 16172 20215 23860 28340 31018 32344 33899 40430 47720 56680 62036 67798 77545 80860 124072 130037 135596 155090 161720 169495 260074 271192 310180 338990 371023 440687 520148 620360 650185 677980 742046 881374 1040296 1300370 1355960 1484092 1690481 1762748 1855115 2203435 2600740 2968184 3380962 3525496 3710230 4406870 4823299 5201480 6761924 7420460 8452405 8813740 9646598 13523848 14840920 16904810 17627480 19293196 24116495 33809620 38586392 40441507 48232990 67619240 80883014 96465980 161766028 192931960 202207535 323532056 404415070 525739591 808830140 1051479182 1617660280 2102958364 2628697955 4205916728 5257395910 10514791820 21029583640
• Sum of all divisors σ(n): 51632380800
• Sum of proper divisors (its aliquot sum) s(n): 30602797160
• 21029583640 is an abundant number, because the sum of its proper divisors (30602797160) is greater than itself. Its abundance is 9573213520

Bases of 21029583640

• Binary: 10011100101011101011111101100011000₂
• Hexadecimal: 0x4E575FB18
• Base-36: 9NSGYL4

Squares and roots of 21029583640

• 21029583640 squared (21029583640²) is 442243388071755649600
• 21029583640 cubed (21029583640³) is 9300194318691963754905732544000
• The square root of 21029583640 is 145015.8047938223
• The cube root of 21029583640 is 2760.2191084891

Scales and comparisons

• 21,029,583,640 seconds is equal to 668 years, 35 weeks, 23 hours, 40 seconds.
• To count from 1 to 21,029,583,640 would take you about one thousand, three hundred thirty-seven 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 21029583640 cubic inches would be around 230 feet tall.

Recreational maths with 21029583640

• 21029583640 backwards is 04638592012
• 21029583640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21029583640's digits is 40
• More coming soon!