28157343984

Names of 28157343984

• Cardinal: 28157343984 can be written as Twenty-eight billion, one hundred fifty-seven million, three hundred forty-three thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 2.8157343984 × 10¹⁰

Factors of 28157343984

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 170

Divisors of 28157343984

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 17 18 21 22 24 27 28 29 33 34 36 42 44 48 51 54 56 58 63 66 68 72 77 84 87 88 99 101 102 108 112 116 119 126 132 136 144 153 154 168 174 176 187 189 198 202 203 204 216 231 232 238 252 261 264 272 289 297 303 306 308 319 336 348 357 374 378 396 404 406 408 432 459 462 464 476 493 504 522 528 561 578 594 606 609 612 616 638 693 696 707 714 748 756 783 792 808 812 816 867 909 918 924 952 957 986 1008 1044 1071 1111 1122 1156 1188 1212 1218 1224 1232 1276 1309 1386 1392 1414 1428 1479 1496 1512 1566 1584 1616 1624 1683 1717 1734 1818 1827 1836 1848 1904 1914 1972 2023 2079 2088 2121 2142 2222 2233 2244 2312 2376 2424 2436 2448 2552 2601 2618 2727 2772 2828 2856 2871 2929 2958 2992 3024 3132 3179 3213 3248 3333 3366 3434 3451 3468 3636 3654 3672 3696 3828 3927 3944 4046 4158 4176 4242 4284 4437 4444 4466 4488 4624 4752 4848 4872 5049 5104 5151 5202 5236 5423 5454 5481 5544 5656 5712 5742 5858 5916 6069 6264 6358 6363 6426 6666 6699 6732 6868 6902 6936 7272 7308 7344 7656 7777 7803 7854 7888 8092 8316 8381 8484 8568 8613 8787 8874 8888 8932 8976 9537 9744 9999 10098 10302 10353 10404 10472 10846 10908 10962 11088 11312 11484 11716 11781 11832 12019 12138 12528 12716 12726 12852 13311 13332 13398 13464 13736 13804 13872 14544 14616 15312 15453 15554 15606 15708 16184 16269 16632 16762 16968 17136 17226 17574 17748 17776 17864 18207 18887 19074 19089 19998 20097 20196 20503 20604 20706 20808 20944 21692 21816 21924 22253 22968 23331 23432 23562 23664 24038 24276 25143 25432 25452 25704 26361 26622 26664 26796 26928 27472 27608 28611 29189 29232 29997 30906 31059 31108 31212 31416 32219 32368 32538 33264 33524 33936 34452 35148 35343 35496 35728 36057 36414 37774 37961 38148 38178 39996 40194 40392 41006 41208 41412 41616 43384 43632 43848 44506 45936 46359 46662 46864 47124 48076 48552 48807 49793 50286 50864 50904 51408 52722 53244 53328 53592 54621 55216 56661 57222 58378 58667 59994 60291 61509 61812 62118 62216 62424 62832 64438 65076 66759 67048 68904 69993 70296 70686 70992 72114 72828 75429 75548 75922 76296 76356 79083 79992 80388 80784 82012 82416 82824 85833 86768 87567 87696 89012 92191 92718 93177 93324 94248 96152 96657 97104 97614 99586 100572 101808 105444 106488 107184 108171 109242 113322 113883 114444 116756 117334 119988 120582 123018 123624 124236 124432 124848 128876 130152 132209 133518 134096 137808 139986 140592 141372 144228 145656 146421 149379 150858 151096 151844 152592 152712 158166 159984 160776 164024 165648 169983 171666 175134 176001 178024 184382 184527 185436 186354 186648 188496 192304 193314 195228 199172 200277 201144 204323 209979 210888 212976 216342 218484 225533 226287 226644 227766 228888 233512 234668 239976 241164 246036 247248 248472 257752 260304 262701 264418 267036 276573 279972 282744 288456 289971 291312 292842 298758 301716 302192 303688 305424 316332 321079 321552 324513 328048 339966 341649 343332 348551 350268 352002 356048 368764 369054 370872 372708 373296 386628 390456 396627 398344 400554 402288 408646 419958 421776 432684 436968 448137 451066 452574 453288 455532 457776 467024 469336 479952 482328 492072 496944 509949 515504 525402 528003 528836 534072 547723 553146 553581 559944 565488 576912 579942 585684 597516 600831 603432 607376 612969 632664 642158 645337 649026 676599 679932 683298 686664 697102 700536 704004 737528 738108 741744 745416 773256 780912 788103 793254 796688 801108 817292 829719 839916 846481 865368 869913 873936 896274 902132 905148 906576 911064 938672 963237 964656 984144 1019898 1024947 1045653 1050804 1056006 1057672 1068144 1095446 1106292 1107162 1119888 1159884 1171368 1189881 1195032 1201662 1206864 1225938 1265328 1284316 1290674 1298052 1344411 1353198 1359864 1366596 1373328 1394204 1401072 1408008 1475056 1476216 1490832 1546512 1576206 1584009 1586508 1602216 1634584 1643169 1659438 1679832 1692962 1730736 1739826 1792548 1804264 1810296 1822128 1838907 1926474 1936011 2029797 2039796 2049894 2091306 2101608 2112012 2115344 2190892 2212584 2214324 2247553 2319768 2342736 2379762 2390064 2403324 2451876 2489157 2539443 2568632 2581348 2596104 2688822 2706396 2719728 2733192 2788408 2816016 2889711 2952432 3136959 3152412 3168018 3173016 3204432 3269168 3286338 3318876 3359664 3385924 3479652 3569643 3585096 3608528 3620592 3677814 3834061 3852948 3872022 4059594 4079592 4099788 4182612 4203216 4224024 4381784 4425168 4428648 4495106 4639536 4759524 4806648 4903752 4929507 4978314 5078886 5137264 5162696 5192208 5377644 5412792 5466384 5516721 5576816 5779422 5808033 5925367 6089391 6273918 6304824 6336036 6346032 6572676 6637752 6742659 6771848 6959304 7139286 7170192 7355628 7618329 7668122 7705896 7744044 8119188 8159184 8199576 8365224 8448048 8669133 8763568 8857296 8990212 9311291 9410877 9519048 9613296 9807504 9859014 9956628 10157772 10325392 10755288 10825584 11033442 11502183 11558844 11616066 11850734 12178782 12547836 12609648 12672072 13145352 13275504 13485318 13543696 13918608 14278572 14711256 14788521 15236658 15336244 15411792 15488088 16238376 16399152 16730448 17338266 17424099 17776101 17980424 18622582 18821754 19038096 19718028 19913256 20227977 20315544 21510576 22066884 22854987 23004366 23117688 23232132 23701468 24357564 25095672 25344144 26290704 26970636 27933873 28557144 29422512 29577042 30473316 30672488 30976176 32476752 34506549 34676532 34848198 35552202 35960848 37245164 37643508 39436056 39826512 40455954 40631088 44133768 45709974 46008732 46235376 46464264 47402936 48715128 50191344 53328303 53941272 55867746 57114288 59154084 60683931 60946632 61344976 65179037 69013098 69353064 69696396 71104404 74490328 75287016 78872112 80911908 83801619 88267536 91419948 92017464 92928528 94805872 97430256 103519647 106656606 107882544 111735492 118308168 121367862 121893264 130358074 138026196 138706128 139392792 142208808 148980656 150574032 159984909 161823816 167603238 182839896 184034928 195537111 207039294 213313212 223470984 236616336 242735724 251404857 260716148 276052392 278785584 284417616 319969818 323647632 335206476 365679792 391074222 414078588 426626424 446941968 485471448 502809714 521432296 552104784 586611333 639939636 670412952 782148444 828157176 853252848 970942896 1005619428 1042864592 1173222666 1279879272 1340825904 1564296888 1656314352 1759833999 2011238856 2346445332 2559758544 3128593776 3519667998 4022477712 4692890664 7039335996 9385781328 14078671992 28157343984
• Sum of all divisors σ(n): 111828556800
• Sum of proper divisors (its aliquot sum) s(n): 83671212816
• 28157343984 is an abundant number, because the sum of its proper divisors (83671212816) is greater than itself. Its abundance is 55513868832

Bases of 28157343984

• Binary: 11010001110010011101111100011110000₂
• Hexadecimal: 0x68E4EF8F0
• Base-36: CXO5LO0

Squares and roots of 28157343984

• 28157343984 squared (28157343984²) is 792836020233300992256
• 28157343984 cubed (28157343984³) is 22324156544614639970760712187904
• The square root of 28157343984 is 167801.5017334469
• The cube root of 28157343984 is 3042.2663150091

Scales and comparisons

• 28,157,343,984 seconds is equal to 895 years, 16 weeks, 3 days, 4 hours, 26 minutes, 24 seconds.
• To count from 1 to 28,157,343,984 would take you about one thousand, seven hundred ninety 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 28157343984 cubic inches would be around 253.5 feet tall.

Recreational maths with 28157343984

• 28157343984 backwards is 48934375182
• 28157343984 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28157343984's digits is 54
• More coming soon!