138238740045

Names of 138238740045

• Cardinal: 138238740045 can be written as One hundred thirty-eight billion, two hundred thirty-eight million, seven hundred forty thousand and forty-five.

Scientific notation

• Scientific notation: 1.38238740045 × 10¹¹

Factors of 138238740045

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 256

Divisors of 138238740045

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 5 7 9 15 21 27 29 31 35 45 63 87 93 105 135 145 155 181 189 203 217 261 279 315 435 465 543 609 651 783 837 841 899 905 945 961 1015 1085 1267 1305 1395 1629 1827 1953 2523 2697 2715 2883 3045 3255 3801 3915 4185 4205 4495 4805 4887 5249 5481 5611 5859 5887 6293 6335 6727 7569 8091 8145 8649 9135 9765 11403 12615 13485 14415 15747 16833 17661 18879 19005 20181 22707 24273 24435 25947 26071 26245 27405 27869 28055 29295 29435 31465 33635 34209 36743 37845 39277 40455 43245 47241 50499 52983 56637 57015 60543 78213 78735 83607 84165 88305 94395 100905 110229 113535 117831 121365 129735 130355 139345 141723 151497 152221 158949 162719 169911 171045 173941 181629 182497 183715 195083 196385 234639 236205 250821 252495 264915 283185 302715 330687 353493 391065 418035 456663 488157 521823 547491 551145 585249 589155 703917 708615 752463 757485 761105 794745 808201 813595 849555 869705 908145 912485 975415 992061 1060479 1065547 1139033 1173195 1217587 1254105 1369989 1464471 1565469 1642473 1653435 1755747 1767465 2283315 2424603 2440785 2609115 2737455 2926245 3196641 3417099 3519585 3652761 3762315 4041005 4109967 4393413 4696407 4718851 4927419 4960305 5044289 5267241 5302395 5327735 5657407 5695165 6087935 6849945 7273809 7322355 7827345 8212365 8778735 9589923 10251297 10958283 12123015 14156553 15132867 15983205 16972221 17085495 18263805 20549835 21821427 21967065 23482035 23594255 24637095 25221445 26336205 28287035 28769769 30753891 32874849 33031957 35310023 36369045 42469659 45398601 47949615 50916663 51256485 54791415 70782765 75664335 84861105 99095871 105930069 109107135 127408977 136195803 143848845 146284381 152749989 153769455 164374245 165159785 176550115 212348295 226993005 254583315 297287613 317790207 438853143 495479355 529650345 637044885 680979015 731421905 763749945 891862839 953370621 1023990667 1316559429 1486438065 1588951035 2194265715 3071972001 3949678287 4459314195 4766853105 5119953335 6582797145 9215916003 15359860005 19748391435 27647748009 46079580015 138238740045
• Sum of all divisors σ(n): 302231704320
• Sum of proper divisors (its aliquot sum) s(n): 163992964275
• 138238740045 is an abundant number, because the sum of its proper divisors (163992964275) is greater than itself. Its abundance is 25754224230

Bases of 138238740045

• Binary: 10000000101111101010111100011001001101₂
• Hexadecimal: 0x202FABC64D
• Base-36: 1RI7RYH9

Squares and roots of 138238740045

• 138238740045 squared (138238740045²) is 19109949249229086602025
• 138238740045 cubed (138238740045³) is 2641735306537322619430126345591125
• The square root of 138238740045 is 371804.7068623529
• The cube root of 138238740045 is 5170.6275471703

Scales and comparisons

• 138,238,740,045 seconds is equal to 4,395 years, 29 weeks, 2 days, 10 hours, 45 seconds.
• To count from 1 to 138,238,740,045 would take you about eight thousand, seven hundred 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 138238740045 cubic inches would be around 430.9 feet tall.

Recreational maths with 138238740045

• 138238740045 backwards is 540047832831
• 138238740045 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138238740045's digits is 45
• More coming soon!