1388995452

Names of 1388995452

• Cardinal: 1388995452 can be written as One billion, three hundred eighty-eight million, nine hundred ninety-five thousand, four hundred fifty-two.

Scientific notation

• Scientific notation: 1.388995452 × 10⁹

Factors of 1388995452

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 25385

Divisors of 1388995452

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 81 108 117 156 162 169 234 324 338 351 468 507 676 702 1014 1053 1404 1521 2028 2106 3042 4212 4563 6084 9126 13689 18252 25367 27378 50734 54756 76101 101468 152202 228303 304404 329771 456606 659542 684909 913212 989313 1319084 1369818 1978626 2054727 2739636 2967939 3957252 4109454 4287023 5935878 8218908 8574046 8903817 11871756 12861069 17148092 17807634 25722138 26711451 35615268 38583207 51444276 53422902 77166414 106845804 115749621 154332828 231499242 347248863 462998484 694497726 1388995452
• Sum of all divisors σ(n): 3932065368
• Sum of proper divisors (its aliquot sum) s(n): 2543069916
• 1388995452 is an abundant number, because the sum of its proper divisors (2543069916) is greater than itself. Its abundance is 1154074464

Bases of 1388995452

• Binary: 1010010110010100110001101111100₂
• Hexadecimal: 0x52CA637C
• Base-36: MYYZR0

Squares and roots of 1388995452

• 1388995452 squared (1388995452²) is 1929308365676684304
• 1388995452 cubed (1388995452³) is 2679800545430467400695785408
• The square root of 1388995452 is 37269.2292917361
• The cube root of 1388995452 is 1115.7501174837

Scales and comparisons

• 1,388,995,452 seconds is equal to 44 years, 8 weeks, 4 days, 8 hours, 4 minutes, 12 seconds.
• To count from 1 to 1,388,995,452 would take you about eighty-eight 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 1388995452 cubic inches would be around 93 feet tall.

Recreational maths with 1388995452

• 1388995452 backwards is 2545998831
• 1388995452 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1388995452's digits is 54
• More coming soon!