30987796640

Names of 30987796640

• Cardinal: 30987796640 can be written as Thirty billion, nine hundred eighty-seven million, seven hundred ninety-six thousand, six hundred forty.

Scientific notation

• Scientific notation: 3.098779664 × 10¹⁰

Factors of 30987796640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 6838

Divisors of 30987796640

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 71 80 142 160 284 355 431 568 710 862 1136 1420 1724 2155 2272 2840 3448 4310 5680 6329 6896 8620 11360 12658 13792 17240 25316 30601 31645 34480 50632 61202 63290 68960 101264 122404 126580 153005 202528 244808 253160 306010 449359 489616 506320 612020 898718 979232 1012640 1224040 1797436 2246795 2448080 2727799 3594872 4493590 4896160 5455598 7189744 8987180 10911196 13638995 14379488 17974360 21822392 27277990 35948720 43644784 54555980 71897440 87289568 109111960 193673729 218223920 387347458 436447840 774694916 968368645 1549389832 1936737290 3098779664 3873474580 6197559328 7746949160 15493898320 30987796640
• Sum of all divisors σ(n): 74423784960
• Sum of proper divisors (its aliquot sum) s(n): 43435988320
• 30987796640 is an abundant number, because the sum of its proper divisors (43435988320) is greater than itself. Its abundance is 12448191680

Bases of 30987796640

• Binary: 11100110111000001000100000010100000₂
• Hexadecimal: 0x7370440A0
• Base-36: E8HC0WW

Squares and roots of 30987796640

• 30987796640 squared (30987796640²) is 960243540601995289600
• 30987796640 cubed (30987796640³) is 29755831561048213212362706944000
• The square root of 30987796640 is 176033.5099917059
• The cube root of 30987796640 is 3140.9683896987

Scales and comparisons

• 30,987,796,640 seconds is equal to 985 years, 16 weeks, 3 days, 1 hour, 17 minutes, 20 seconds.
• To count from 1 to 30,987,796,640 would take you about one thousand, nine hundred seventy 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 30987796640 cubic inches would be around 261.7 feet tall.

Recreational maths with 30987796640

• 30987796640 backwards is 04669778903
• The number of decimal digits it has is: 11
• The sum of 30987796640's digits is 59
• More coming soon!