28720787088

Names of 28720787088

• Cardinal: 28720787088 can be written as Twenty-eight billion, seven hundred twenty million, seven hundred eighty-seven thousand and eighty-eight.

Scientific notation

• Scientific notation: 2.8720787088 × 10¹⁰

Factors of 28720787088

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 318

Divisors of 28720787088

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 17 21 24 28 34 42 48 49 51 56 67 68 71 84 98 102 112 119 134 136 142 147 151 168 196 201 204 213 238 268 272 284 294 302 336 357 392 402 408 426 453 469 476 497 536 568 588 604 714 784 804 816 833 852 906 938 952 994 1057 1072 1136 1139 1176 1207 1208 1407 1428 1491 1608 1666 1704 1812 1876 1904 1988 2114 2278 2352 2414 2416 2499 2567 2814 2856 2982 3171 3216 3283 3332 3408 3417 3479 3621 3624 3752 3976 4228 4556 4757 4828 4998 5134 5628 5712 5964 6342 6566 6664 6834 6958 7242 7248 7399 7504 7701 7952 7973 8449 8456 9112 9514 9656 9849 9996 10117 10268 10437 10721 11256 11928 12684 13132 13328 13668 13916 14271 14484 14798 15402 15946 16898 16912 17969 18224 19028 19312 19698 19992 20234 20536 20874 21442 22197 22512 23856 23919 25347 25368 26264 27336 27832 28542 28968 29596 30351 30804 31892 32163 33299 33796 35938 38056 39396 39984 40468 41072 41748 42884 44394 47838 50694 50736 52528 53907 54672 55664 55811 57084 57936 59143 59192 60702 61608 63784 64326 66598 67592 70819 71876 75047 76112 78792 80869 80936 83496 85768 88788 95676 99897 101388 107814 111622 114168 118286 118384 121404 123216 125783 127568 128652 133196 135184 141638 143752 150094 157584 161738 161872 166992 167433 171536 171989 177429 177576 182257 191352 199794 202776 212457 215628 223244 225141 228336 233093 236572 242607 242808 251566 257304 266392 283276 287504 300188 323476 334866 343978 354858 355152 364514 377349 382704 399588 405552 424914 431256 446488 450282 466186 473144 485214 485616 495733 503132 514608 515967 525329 532784 546771 566083 566552 600376 646952 669732 687956 699279 709716 718307 729028 754698 799176 849828 862512 892976 900564 932372 946288 970428 991466 1006264 1031934 1050658 1093542 1132166 1133104 1200752 1203923 1275799 1293904 1339464 1375912 1398558 1419432 1436614 1458056 1487199 1509396 1575987 1598352 1698249 1699656 1801128 1864744 1940856 1982932 2012528 2063868 2101316 2154921 2187084 2264332 2407846 2551598 2678928 2751824 2797116 2838864 2873228 2916112 2974398 3018792 3151974 3396498 3399312 3602256 3611769 3729488 3827397 3881712 3962581 3965864 4127736 4202632 4309842 4374168 4528664 4815692 5028149 5103196 5594232 5746456 5948796 6037584 6303948 6792996 7223538 7654794 7925162 7931728 8255472 8405264 8427461 8619684 8748336 8930593 9057328 9631384 10056298 10206392 11188464 11492912 11887743 11897592 12211219 12607896 13585992 14447076 15084447 15309588 15850324 16854922 17239368 17861186 19262768 20112596 20412784 23775486 23795184 24422438 25215792 25282383 26791779 27171984 28894152 30168894 30619176 31700648 33709844 34478736 35197043 35722372 36633657 40225192 47550972 48844876 50564766 53583558 57788304 60337788 61238352 63401296 67419688 70394086 71444744 73267314 80450384 85478533 95101944 97689752 101129532 105591129 107167116 120675576 134839376 140788172 142889488 146534628 170957066 190203888 195379504 202259064 211182258 214334232 241351152 256435599 281576344 293069256 341914132 404518128 422364516 428668464 512871198 563152688 586138512 598349731 683828264 844729032 1025742396 1196699462 1367656528 1689458064 1795049193 2051484792 2393398924 3590098386 4102969584 4786797848 7180196772 9573595696 14360393544 28720787088
• Sum of all divisors σ(n): 94679083008
• Sum of proper divisors (its aliquot sum) s(n): 65958295920
• 28720787088 is an abundant number, because the sum of its proper divisors (65958295920) is greater than itself. Its abundance is 37237508832

Bases of 28720787088

• Binary: 11010101111111001000110111010010000₂
• Hexadecimal: 0x6AFE46E90
• Base-36: D6ZM55C

Squares and roots of 28720787088

• 28720787088 squared (28720787088²) is 824883610954227519744
• 28720787088 cubed (28720787088³) is 23691306562596993108077740265472
• The square root of 28720787088 is 169472.0835063993
• The cube root of 28720787088 is 3062.4248898041

Scales and comparisons

• 28,720,787,088 seconds is equal to 913 years, 12 weeks, 12 hours, 24 minutes, 48 seconds.
• To count from 1 to 28,720,787,088 would take you about one thousand, eight hundred twenty-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 28720787088 cubic inches would be around 255.2 feet tall.

Recreational maths with 28720787088

• 28720787088 backwards is 88078702782
• The number of decimal digits it has is: 11
• The sum of 28720787088's digits is 57
• More coming soon!