30856479920

Names of 30856479920

• Cardinal: 30856479920 can be written as Thirty billion, eight hundred fifty-six million, four hundred seventy-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 3.085647992 × 10¹⁰

Factors of 30856479920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 8236

Divisors of 30856479920

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 31 35 40 49 56 62 70 80 98 112 124 140 155 196 217 245 248 280 310 392 434 490 496 560 620 784 868 961 980 1085 1240 1519 1736 1922 1960 2170 2480 3038 3472 3844 3920 4340 4805 6076 6727 7595 7688 8191 8680 9610 12152 13454 15190 15376 16382 17360 19220 24304 26908 30380 32764 33635 38440 40955 47089 53816 57337 60760 65528 67270 76880 81910 94178 107632 114674 121520 131056 134540 163820 188356 229348 235445 253921 269080 286685 327640 376712 401359 458696 470890 507842 538160 573370 655280 753424 802718 917392 941780 1015684 1146740 1269605 1605436 1777447 1883560 2006795 2031368 2293480 2539210 3210872 3554894 3767120 4013590 4062736 4586960 5078420 6421744 7109788 7871551 8027180 8887235 10156840 12442129 14219576 15743102 16054360 17774470 20313680 24884258 28439152 31486204 32108720 35548940 39357755 49768516 55100857 62210645 62972408 71097880 78715510 99537032 110201714 124421290 125944816 142195760 157431020 199074064 220403428 248842580 275504285 314862040 385705999 440806856 497685160 551008570 629724080 771411998 881613712 995370320 1102017140 1542823996 1928529995 2204034280 3085647992 3857059990 4408068560 6171295984 7714119980 15428239960 30856479920
• Sum of all divisors σ(n): 86243622912
• Sum of proper divisors (its aliquot sum) s(n): 55387142992
• 30856479920 is an abundant number, because the sum of its proper divisors (55387142992) is greater than itself. Its abundance is 24530663072

Bases of 30856479920

• Binary: 11100101111001100001000010010110000₂
• Hexadecimal: 0x72F3084B0
• Base-36: E6B5GA8

Squares and roots of 30856479920

• 30856479920 squared (30856479920²) is 952122353053363206400
• 30856479920 cubed (30856479920³) is 29379144268374252466748415488000
• The square root of 30856479920 is 175660.1261527497
• The cube root of 30856479920 is 3136.5252893459

Scales and comparisons

• 30,856,479,920 seconds is equal to 981 years, 7 weeks, 2 days, 4 hours, 25 minutes, 20 seconds.
• To count from 1 to 30,856,479,920 would take you about one thousand, nine hundred sixty-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 30856479920 cubic inches would be around 261.4 feet tall.

Recreational maths with 30856479920

• 30856479920 backwards is 02997465803
• The number of decimal digits it has is: 11
• The sum of 30856479920's digits is 53
• More coming soon!