12345721542

Names of 12345721542

• Cardinal: 12345721542 can be written as Twelve billion, three hundred forty-five million, seven hundred twenty-one thousand, five hundred forty-two.

Scientific notation

• Scientific notation: 1.2345721542 × 10¹⁰

Factors of 12345721542

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 144

Divisors of 12345721542

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 6 7 9 11 14 18 19 21 22 27 31 33 38 42 54 57 62 63 66 71 77 93 99 114 126 133 142 154 171 186 189 198 209 213 217 231 266 279 297 341 342 378 399 418 426 434 462 497 513 558 589 594 627 639 651 682 693 781 798 837 994 1023 1026 1178 1197 1254 1278 1302 1349 1386 1463 1491 1562 1674 1767 1881 1917 1953 2046 2079 2201 2343 2387 2394 2698 2926 2982 3069 3534 3591 3762 3834 3906 4047 4123 4158 4389 4402 4473 4686 4774 5041 5301 5467 5643 5859 6138 6479 6603 7029 7161 7182 8094 8246 8778 8946 9207 9443 10082 10602 10934 11286 11718 12141 12369 12958 13167 13206 13419 14058 14322 14839 15123 15407 15903 16401 18414 18886 19437 19809 21087 21483 24211 24282 24738 26334 26838 28329 29678 30246 30814 31806 32802 35287 36423 37107 38874 39501 39618 41819 42174 42966 44517 45353 45369 46221 48422 49203 55451 56658 58311 59427 64449 70574 72633 72846 74214 79002 83638 84987 89034 90706 90738 92442 95779 98406 103873 105861 110902 111321 116622 118854 125457 128898 133551 136059 136107 138663 145266 147609 156271 166353 169477 169974 174933 191558 207746 211722 217899 222642 250914 254961 267102 272118 272214 277326 287337 292733 295218 311619 312542 317583 332706 338954 349866 376371 388157 400653 408177 415989 435798 460009 468813 499059 508431 509922 574674 585466 623238 635166 653697 670453 752742 776314 801306 816354 831978 862011 878199 920018 934857 937626 952749 998118 1016862 1053569 1093897 1129113 1164471 1224531 1307394 1340906 1380027 1406439 1497177 1525293 1718981 1724022 1756398 1869714 1905498 2011359 2107138 2187794 2258226 2328942 2449062 2586033 2634597 2760054 2804571 2812878 2969149 2994354 3050586 3160707 3220063 3281691 3437962 3493413 4022718 4140081 4219317 4575879 5156943 5172066 5269194 5609142 5938298 6034077 6321414 6440126 6563382 6986826 7374983 7903791 8280162 8438634 8907447 9151758 9482121 9660189 9845073 10313886 10480239 12032867 12068154 12420243 14749966 15470829 15807582 17814894 18102231 18964242 19320378 19690146 20784043 20960478 22124949 24065734 24840486 26722341 28446363 28980567 29535219 30941658 32660639 36098601 36204462 41568086 44249898 46412487 53444682 56892726 57961134 59070438 62352129 65321278 66374847 72197202 80167023 86941701 92824974 97981917 108295803 124704258 132749694 160334046 173883402 187056387 195963834 199124541 216591606 228624473 293945751 324887409 374112774 398249082 457248946 561169161 587891502 649774818 685873419 881837253 1122338322 1371746838 1763674506 2057620257 4115240514 6172860771 12345721542
• Sum of all divisors σ(n): 37697126400
• Sum of proper divisors (its aliquot sum) s(n): 25351404858
• 12345721542 is an abundant number, because the sum of its proper divisors (25351404858) is greater than itself. Its abundance is 13005683316

Bases of 12345721542

• Binary: 1011011111110111001100001011000110₂
• Hexadecimal: 0x2DFDCC2C6
• Base-36: 5O6BNPI

Squares and roots of 12345721542

• 12345721542 squared (12345721542²) is 152416840392602857764
• 12345721542 cubed (12345721542³) is 1881695869798532838547776752088
• The square root of 12345721542 is 111111.3024943907
• The cube root of 12345721542 is 2311.2069017897

Scales and comparisons

• 12,345,721,542 seconds is equal to 392 years, 28 weeks, 6 days, 7 hours, 5 minutes, 42 seconds.
• To count from 1 to 12,345,721,542 would take you about seven hundred eighty-five 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 12345721542 cubic inches would be around 192.6 feet tall.

Recreational maths with 12345721542

• 12345721542 backwards is 24512754321
• The number of decimal digits it has is: 11
• The sum of 12345721542's digits is 36
• More coming soon!