1438668378

Names of 1438668378

• Cardinal: 1438668378 can be written as One billion, four hundred thirty-eight million, six hundred sixty-eight thousand, three hundred seventy-eight.

Scientific notation

• Scientific notation: 1.438668378 × 10⁹

Factors of 1438668378

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2016

Divisors of 1438668378

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 42 54 63 73 81 126 146 162 189 219 243 378 438 486 511 567 657 729 1022 1134 1314 1458 1533 1701 1931 1971 3066 3402 3862 3942 4599 5103 5793 5913 9198 10206 11586 11826 13517 13797 17379 17739 27034 27594 34758 35478 40551 41391 52137 53217 81102 82782 104274 106434 121653 124173 140963 156411 243306 248346 281926 312822 364959 372519 422889 469233 729918 745038 845778 938466 986741 1094877 1268667 1407699 1973482 2189754 2537334 2815398 2960223 3284631 3806001 5920446 6569262 7612002 8880669 9853893 11418003 17761338 19707786 22836006 26642007 34254009 53284014 68508018 79926021 102762027 159852042 205524054 239778063 479556126 719334189 1438668378
• Sum of all divisors σ(n): 3750336576
• Sum of proper divisors (its aliquot sum) s(n): 2311668198
• 1438668378 is an abundant number, because the sum of its proper divisors (2311668198) is greater than itself. Its abundance is 872999820

Bases of 1438668378

• Binary: 1010101110000000101011001011010₂
• Hexadecimal: 0x55C0565A
• Base-36: NSJNMI

Squares and roots of 1438668378

• 1438668378 squared (1438668378²) is 2069766701857150884
• 1438668378 cubed (1438668378³) is 2977707903799236849985546152
• The square root of 1438668378 is 37929.7822034349
• The cube root of 1438668378 is 1128.8950427845

Scales and comparisons

• 1,438,668,378 seconds is equal to 45 years, 38 weeks, 5 days, 6 hours, 6 minutes, 18 seconds.
• To count from 1 to 1,438,668,378 would take you about ninety-one 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 1438668378 cubic inches would be around 94.1 feet tall.

Recreational maths with 1438668378

• 1438668378 backwards is 8738668341
• 1438668378 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1438668378's digits is 54
• More coming soon!