138020979915

Names of 138020979915

• Cardinal: 138020979915 can be written as One hundred thirty-eight billion, twenty million, nine hundred seventy-nine thousand, nine hundred fifteen.

Scientific notation

• Scientific notation: 1.38020979915 × 10¹¹

Factors of 138020979915

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 191

Divisors of 138020979915

• Number of divisors d(n): 480
• Complete list of divisors:
  1 3 5 7 9 13 15 21 27 29 35 39 45 61 63 65 73 81 87 91 105 117 135 145 183 189 195 203 219 261 273 305 315 351 365 377 405 427 435 455 511 549 567 585 609 657 783 793 819 841 915 945 949 1015 1053 1095 1131 1281 1305 1365 1533 1647 1755 1769 1827 1885 1971 2117 2135 2349 2379 2457 2523 2555 2639 2745 2835 2847 3045 3285 3393 3843 3915 3965 4095 4205 4453 4599 4745 4941 5265 5307 5481 5551 5655 5887 5913 6351 6405 6643 7137 7371 7569 7665 7917 8235 8541 8845 9135 9855 10179 10585 10933 11529 11745 11895 12285 12383 12615 13195 13359 13797 14235 14819 15921 16443 16653 16965 17661 19053 19215 19929 21411 22265 22707 22995 22997 23751 24705 25623 26535 27405 27521 27755 29435 29565 30537 31171 31755 32799 33215 34587 35685 36855 37149 37845 39585 40077 41391 42705 44457 47763 49959 50895 51301 52983 54665 57159 57645 57889 59787 61393 61915 64233 66795 68121 68985 68991 71253 74095 76531 76869 79605 82215 82563 83265 88305 93513 95265 98397 99645 107055 111447 113535 114985 118755 120231 128115 129137 133371 137605 143289 149877 152685 153903 155855 158949 160979 163995 171477 172935 173667 179361 184179 185745 192647 200385 206955 206973 213759 222285 229593 238815 247689 249795 256505 264915 280539 285795 289445 295191 298935 306965 321165 334341 340605 344955 356265 359107 360693 382655 384345 387411 400113 405223 412815 429751 449631 461709 467565 476847 482937 491985 521001 538083 552537 557235 577941 601155 620919 645685 666855 666913 688779 716445 743067 749385 769515 794745 798109 804895 841617 857385 868335 885573 896805 903959 920895 963235 1003023 1034865 1068795 1077321 1147965 1162233 1200339 1215669 1238445 1289253 1385127 1402695 1448811 1475955 1563003 1657611 1671705 1678781 1733823 1795535 1803465 1862757 1937055 2000565 2000739 2026115 2066337 2148755 2229201 2248155 2308545 2384235 2394327 2414685 2524851 2605005 2690415 2711877 2762685 2889705 3104595 3231963 3334565 3443895 3486699 3647007 3715335 3744973 3867759 3990545 4155381 4208085 4346433 4427865 4519795 4668391 4689009 4972833 5015115 5036343 5201469 5386605 5586763 5811165 6001695 6002217 6078345 6199011 6446265 6925635 7182981 7244055 7815015 8135631 8288055 8393905 8669115 9313785 9695889 10003695 10331685 10460097 10941021 11146005 11234919 11603277 11751467 11971635 12624255 13039299 13559385 14005173 15109029 15604407 16159815 16760289 17433495 18006651 18235035 18724865 19338795 20776905 21548943 21732165 23341955 23445045 24406893 24864165 25181715 26007345 26214811 27933815 29087667 30011085 30995055 32823063 33704757 34809831 35254401 35914905 40678155 42015519 45327087 48479445 48684649 50280867 52300485 54019953 54705105 56174595 58016385 58757335 64646829 65196495 70025865 73220679 75545145 78022035 78644433 83801445 90033255 101114271 105763203 107744715 122034465 126046557 131074055 135981261 145438335 146053947 150842601 164115315 168523785 174049155 176272005 210077595 226635435 235933299 243423245 251404335 270099765 303342813 317289609 323234145 340792543 366103395 378139671 393222165 438161841 452527803 505571355 528816015 630232785 679906305 707799897 730269735 754213005 951868827 1022377629 1179666495 1314485523 1516714065 1586448045 1703962715 1890698355 2123399691 2190809205 2262639015 3067132887 3538999485 3943456569 4759344135 5111888145 6572427615 9201398661 10616998455 15335664435 19717282845 27604195983 46006993305 138020979915
• Sum of all divisors σ(n): 324934786176
• Sum of proper divisors (its aliquot sum) s(n): 186913806261
• 138020979915 is an abundant number, because the sum of its proper divisors (186913806261) is greater than itself. Its abundance is 48892826346

Bases of 138020979915

• Binary: 10000000100010101100010000010011001011₂
• Hexadecimal: 0x2022B104CB
• Base-36: 1REM4LOR

Squares and roots of 138020979915

• 138020979915 squared (138020979915²) is 19049790896696833407225
• 138020979915 cubed (138020979915³) is 2629270806737943483542702740885875
• The square root of 138020979915 is 371511.7493633277
• The cube root of 138020979915 is 5167.9111155239

Scales and comparisons

• 138,020,979,915 seconds is equal to 4,388 years, 33 weeks, 2 days, 1 hour, 5 minutes, 15 seconds.
• To count from 1 to 138,020,979,915 would take you about eight thousand, seven hundred seventy-seven 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 138020979915 cubic inches would be around 430.7 feet tall.

Recreational maths with 138020979915

• 138020979915 backwards is 519979020831
• The number of decimal digits it has is: 12
• The sum of 138020979915's digits is 54
• More coming soon!