28993308007920

Names of 28993308007920

• Cardinal: 28993308007920 can be written as Twenty-eight trillion, nine hundred ninety-three billion, three hundred eight million, seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.899330800792 × 10¹³

Factors of 28993308007920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5252410904

Divisors of 28993308007920

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 23 24 30 40 46 48 60 69 80 92 115 120 138 184 230 240 276 345 368 460 552 690 920 1104 1380 1840 2760 5520 5252410871 10504821742 15757232613 21009643484 26262054355 31514465226 42019286968 52524108710 63028930452 78786163065 84038573936 105048217420 120805450033 126057860904 157572326130 210096434840 241610900066 252115721808 315144652260 362416350099 420192869680 483221800132 604027250165 630289304520 724832700198 966443600264 1208054500330 1260578609040 1449665400396 1812081750495 1932887200528 2416109000660 2899330800792 3624163500990 4832218001320 5798661601584 7248327001980 9664436002640 14496654003960 28993308007920
• Sum of all divisors σ(n): 93787048530432
• Sum of proper divisors (its aliquot sum) s(n): 64793740522512
• 28993308007920 is an abundant number, because the sum of its proper divisors (64793740522512) is greater than itself. Its abundance is 35800432514592

Bases of 28993308007920

• Binary: 110100101111010000111110100110001110111110000₂
• Hexadecimal: 0x1A5E87D31DF0
• Base-36: A9ZCB03QO

Squares and roots of 28993308007920

• 28993308007920 squared (28993308007920²) is 840611909242117998782726400
• 28993308007920 cubed (28993308007920³) is 24372119999782420032248786145290393088000
• The square root of 28993308007920 is 5384543.4354195713
• The cube root of 28993308007920 is 30720.8048658785

Scales and comparisons

• 28,993,308,007,920 seconds is equal to 921,897 years, 26 weeks, 4 days, 12 hours, 52 minutes.
• To count from 1 to 28,993,308,007,920 would take you about two million, three hundred four thousand, seven hundred forty-three 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 28993308007920 cubic inches would be around 2560.1 feet tall.

Recreational maths with 28993308007920

• 28993308007920 backwards is 02970080339982
• 28993308007920 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 28993308007920's digits is 60
• More coming soon!