138617472

Names of 138617472

• Cardinal: 138617472 can be written as One hundred thirty-eight million, six hundred seventeen thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.38617472 × 10⁸

Factors of 138617472

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 204

Divisors of 138617472

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 53 56 64 84 96 98 106 112 128 139 147 159 168 192 196 212 224 278 294 318 336 371 384 392 417 424 448 556 588 636 672 742 784 834 848 896 973 1112 1113 1176 1272 1344 1484 1568 1668 1696 1946 2224 2226 2352 2544 2597 2688 2919 2968 3136 3336 3392 3892 4448 4452 4704 5088 5194 5838 5936 6272 6672 6784 6811 7367 7784 7791 8896 8904 9408 10176 10388 11676 11872 13344 13622 14734 15568 15582 17792 17808 18816 20352 20433 20776 22101 23352 23744 26688 27244 29468 31136 31164 35616 40866 41552 44202 46704 47488 51569 53376 54488 58936 62272 62328 71232 81732 83104 88404 93408 103138 108976 117872 124544 124656 142464 154707 163464 166208 176808 186816 206276 217952 235744 249312 309414 326928 332416 353616 360983 373632 412552 435904 471488 498624 618828 653856 707232 721966 825104 871808 942976 997248 1082949 1237656 1307712 1414464 1443932 1650208 2165898 2475312 2615424 2828928 2887864 3300416 4331796 4950624 5775728 6600832 8663592 9901248 11551456 17327184 19802496 23102912 34654368 46205824 69308736 138617472
• Sum of all divisors σ(n): 439538400
• Sum of proper divisors (its aliquot sum) s(n): 300920928
• 138617472 is an abundant number, because the sum of its proper divisors (300920928) is greater than itself. Its abundance is 162303456

Bases of 138617472

• Binary: 1000010000110010001010000000₂
• Hexadecimal: 0x8432280
• Base-36: 2AJ1XC

Squares and roots of 138617472

• 138617472 squared (138617472²) is 19214803543670784
• 138617472 cubed (138617472³) is 2663507492200285678338048
• The square root of 138617472 is 11773.5921451357
• The cube root of 138617472 is 517.5345221899

Scales and comparisons

• 138,617,472 seconds is equal to 4 years, 21 weeks, 1 day, 8 hours, 51 minutes, 12 seconds.
• To count from 1 to 138,617,472 would take you about six 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 138617472 cubic inches would be around 43.1 feet tall.

Recreational maths with 138617472

• 138617472 backwards is 274716831
• The number of decimal digits it has is: 9
• The sum of 138617472's digits is 39
• More coming soon!