138891291624

Names of 138891291624

• Cardinal: 138891291624 can be written as One hundred thirty-eight billion, eight hundred ninety-one million, two hundred ninety-one thousand, six hundred twenty-four.

Scientific notation

• Scientific notation: 1.38891291624 × 10¹¹

Factors of 138891291624

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2069

Divisors of 138891291624

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 53 54 72 81 106 108 159 162 212 216 318 324 424 477 636 648 954 1272 1431 1908 2011 2862 3816 4022 4293 5724 6033 8044 8586 11448 12066 16088 17172 18099 24132 34344 36198 48264 54297 72396 106583 108594 144792 162891 213166 217188 319749 325782 426332 434376 639498 651564 852664 959247 1278996 1303128 1918494 2557992 2877741 3836988 4044121 5755482 7673976 8088242 8633223 11510964 12132363 16176484 17266446 23021928 24264726 32352968 34532892 36397089 48529452 69065784 72794178 97058904 109191267 145588356 214338413 218382534 291176712 327573801 428676826 436765068 643015239 655147602 857353652 873530136 1286030478 1310295204 1714707304 1929045717 2572060956 2620590408 3858091434 5144121912 5787137151 7716182868 11574274302 15432365736 17361411453 23148548604 34722822906 46297097208 69445645812 138891291624
• Sum of all divisors σ(n): 396561495330
• Sum of proper divisors (its aliquot sum) s(n): 257670203706
• 138891291624 is an abundant number, because the sum of its proper divisors (257670203706) is greater than itself. Its abundance is 118778912082

Bases of 138891291624

• Binary: 10000001010110100100001110101111101000₂
• Hexadecimal: 0x205690EBE8
• Base-36: 1RT0AEI0

Squares and roots of 138891291624

• 138891291624 squared (138891291624²) is 19290790888983012557376
• 138891291624 cubed (138891291624³) is 2679322863019341805888564048218624
• The square root of 138891291624 is 372681.2198434475
• The cube root of 138891291624 is 5178.7507065109

Scales and comparisons

• 138,891,291,624 seconds is equal to 4,416 years, 16 weeks, 2 days, 2 hours, 20 minutes, 24 seconds.
• To count from 1 to 138,891,291,624 would take you about eight thousand, eight hundred thirty-two 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 138891291624 cubic inches would be around 431.6 feet tall.

Recreational maths with 138891291624

• 138891291624 backwards is 426192198831
• 138891291624 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138891291624's digits is 54
• More coming soon!