12478679903216640

Names of 12478679903216640

• Cardinal: 12478679903216640 can be written as Twelve quadrillion, four hundred seventy-eight trillion, six hundred seventy-nine billion, nine hundred three million, two hundred sixteen thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.247867990321664 × 10¹⁶

Factors of 12478679903216640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 812414056209

Divisors of 12478679903216640

• Number of divisors d(n): 88
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1024 1280 1536 1920 2560 3072 3840 5120 7680 15360 812414056199 1624828112398 2437242168597 3249656224796 4062070280995 4874484337194 6499312449592 8124140561990 9748968674388 12186210842985 12998624899184 16248281123980 19497937348776 24372421685970 25997249798368 32496562247960 38995874697552 48744843371940 51994499596736 64993124495920 77991749395104 97489686743880 103988999193472 129986248991840 155983498790208 194979373487760 207977998386944 259972497983680 311966997580416 389958746975520 415955996773888 519944995967360 623933995160832 779917493951040 831911993547776 1039889991934720 1247867990321664 1559834987902080 2079779983869440 2495735980643328 3119669975804160 4159559967738880 6239339951608320 12478679903216640
• Sum of all divisors σ(n): 39912277752993600
• Sum of proper divisors (its aliquot sum) s(n): 27433597849776960
• 12478679903216640 is an abundant number, because the sum of its proper divisors (27433597849776960) is greater than itself. Its abundance is 14954917946560320

Bases of 12478679903216640

• Binary: 101100010101010100101100010010111001011010010000000000₂
• Hexadecimal: 0x2C554B12E5A400
• Base-36: 3EVBMEOEOLC

Squares and roots of 12478679903216640

• 12478679903216640 squared (12478679903216640²) is 155717452126942851837418772889600
• 12478679903216640 cubed (12478679903216640³) is 1943148240436580998881885164074431160667602944000
• The square root of 12478679903216640 is 111708011.8130147369
• The cube root of 12478679903216640 is 231947.4210961739

Scales and comparisons

• 12,478,679,903,216,640 seconds is equal to 396,783,421 years, 43 weeks, 1 day, 11 hours, 44 minutes.
• To count from 1 to 12,478,679,903,216,640 would take you about one billion, one hundred ninety million, three hundred fifty thousand, two hundred sixty-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 12478679903216640 cubic inches would be around 19329 feet tall.

Recreational maths with 12478679903216640

• 12478679903216640 backwards is 04661230997687421
• The number of decimal digits it has is: 17
• The sum of 12478679903216640's digits is 75
• More coming soon!