12979781640

Names of 12979781640

• Cardinal: 12979781640 can be written as Twelve billion, nine hundred seventy-nine million, seven hundred eighty-one thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.297978164 × 10¹⁰

Factors of 12979781640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 125685

Divisors of 12979781640

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 28 30 35 36 40 41 42 45 56 60 63 70 72 82 84 90 105 120 123 126 140 164 168 180 205 210 246 252 280 287 315 328 360 369 410 420 492 504 574 615 630 738 820 840 861 984 1148 1230 1260 1435 1476 1640 1722 1845 2296 2460 2520 2583 2870 2952 3444 3690 4305 4920 5166 5740 6888 7380 8610 10332 11480 12915 14760 17220 20664 25830 34440 51660 103320 125627 251254 376881 502508 628135 753762 879389 1005016 1130643 1256270 1507524 1758778 1884405 2261286 2512540 2638167 3015048 3517556 3768810 4396945 4522572 5025080 5150707 5276334 5653215 7035112 7537620 7914501 8793890 9045144 10301414 10552668 11306430 13190835 15075240 15452121 15829002 17587780 20602828 21105336 22612860 25753535 26381670 30904242 31658004 35175560 36054949 39572505 41205656 45225720 46356363 51507070 52763340 61808484 63316008 72109898 77260605 79145010 92712726 103014140 105526680 108164847 123616968 144219796 154521210 158290020 180274745 185425452 206028280 216329694 231781815 288439592 309042420 316580040 324494541 360549490 370850904 432659388 463563630 540824235 618084840 648989082 721098980 865318776 927127260 1081648470 1297978164 1442197960 1622472705 1854254520 2163296940 2595956328 3244945410 4326593880 6489890820 12979781640
• Sum of all divisors σ(n): 49386879360
• Sum of proper divisors (its aliquot sum) s(n): 36407097720
• 12979781640 is an abundant number, because the sum of its proper divisors (36407097720) is greater than itself. Its abundance is 23427316080

Bases of 12979781640

• Binary: 1100000101101001111100000000001000₂
• Hexadecimal: 0x305A7C008
• Base-36: 5YNTRM0

Squares and roots of 12979781640

• 12979781640 squared (12979781640²) is 168474731422081089600
• 12979781640 cubed (12979781640³) is 2186765225716259217381274944000
• The square root of 12979781640 is 113928.8446355883
• The cube root of 12979781640 is 2350.1150775093

Scales and comparisons

• 12,979,781,640 seconds is equal to 412 years, 37 weeks, 1 day, 22 hours, 54 minutes.
• To count from 1 to 12,979,781,640 would take you about eight hundred twenty-five 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 12979781640 cubic inches would be around 195.8 feet tall.

Recreational maths with 12979781640

• 12979781640 backwards is 04618797921
• The number of decimal digits it has is: 11
• The sum of 12979781640's digits is 54
• More coming soon!