81789007248

Names of 81789007248

• Cardinal: 81789007248 can be written as Eighty-one billion, seven hundred eighty-nine million, seven thousand, two hundred forty-eight.

Scientific notation

• Scientific notation: 8.1789007248 × 10¹⁰

Factors of 81789007248

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1142

Divisors of 81789007248

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 19 24 26 36 38 39 43 48 52 53 57 72 76 78 86 104 106 114 117 129 144 152 156 159 171 172 208 212 228 234 247 258 304 312 318 342 344 387 424 456 468 477 494 516 559 624 636 684 688 689 741 774 817 848 912 936 954 988 1007 1009 1032 1118 1272 1368 1378 1482 1548 1634 1677 1872 1908 1976 2014 2018 2064 2067 2223 2236 2279 2451 2544 2736 2756 2964 3021 3027 3096 3268 3354 3816 3952 4028 4036 4134 4446 4472 4558 4902 5031 5512 5928 6042 6054 6192 6201 6536 6708 6837 7353 7632 8056 8072 8268 8892 8944 9063 9081 9116 9804 10062 10621 11024 11856 12084 12108 12402 13072 13091 13117 13416 13674 14706 16112 16144 16536 17784 18126 18162 18232 19171 19608 20124 20511 21242 24168 24216 24804 26182 26234 26832 27348 29412 29627 31863 33072 35568 36252 36324 36464 38342 39216 39273 39351 40248 41022 42484 43301 43387 48336 48432 49608 52364 52468 53477 54696 57513 58824 59254 63726 72504 72648 76684 78546 78702 80496 82044 84968 86602 86774 88881 95589 99216 104728 104936 106954 109392 115026 117648 117819 118053 118508 127452 129903 130161 145008 145296 153368 157092 157404 160431 164088 169936 172539 173204 173548 177762 191178 209456 209872 213908 230052 235638 236106 237016 249223 254904 259806 260322 266643 306736 314184 314808 320862 328176 345078 346408 347096 355524 382356 389709 390483 427816 460104 471276 472212 474032 481293 498446 509808 519612 520644 533286 562913 564031 628368 629616 641724 690156 692816 694192 695201 711048 747669 764712 779418 780966 824353 855632 920208 942552 944424 962586 996892 1016063 1039224 1041288 1066572 1125826 1128062 1283448 1380312 1390402 1422096 1495338 1529424 1558836 1561932 1648706 1688739 1692093 1885104 1888848 1925172 1993784 2032126 2078448 2082576 2085603 2133144 2243007 2251652 2256124 2299511 2473059 2566896 2760624 2780804 2990676 3048189 3117672 3123864 3297412 3377478 3384186 3850344 3987568 4064252 4171206 4266288 4486014 4503304 4512248 4599022 4946118 5066217 5076279 5561608 5981352 6096378 6235344 6247728 6256809 6594824 6754956 6768372 6898533 7419177 7700688 8128504 8342412 8972028 9006608 9024496 9144567 9198044 9892236 10132434 10152558 10716589 11123216 11962704 12192756 12513618 13189648 13208819 13509912 13536744 13797066 14838354 16257008 16684824 17944056 18289134 18396088 19784472 20264868 20305116 20695599 21433178 24385512 25027236 26417638 27019824 27073488 27594132 29676708 29893643 32149767 33369648 35888112 36578268 36792176 39568944 39626457 40529736 40610232 41391198 42866356 43690709 48771024 50054472 52835276 55188264 59353416 59787286 64299534 73156536 79252914 81059472 81220464 82782396 85732712 87381418 89680929 96449301 100108944 105670552 110376528 118706832 118879371 119574572 128599068 131072127 146313072 158505828 165564792 171465424 174762836 179361858 192898602 211341104 237758742 239149144 257198136 262144254 269042787 317011656 331129584 349525672 358723716 385797204 393216381 475517484 478298288 514396272 524288508 538085574 567979217 634023312 699051344 717447432 771594408 786432762 951034968 1048577016 1076171148 1135958434 1434894864 1543188816 1572865524 1703937651 1902069936 2097154032 2152342296 2271916868 3145731048 3407875302 4304684592 4543833736 5111812953 6291462096 6815750604 9087667472 10223625906 13631501208 20447251812 27263002416 40894503624 81789007248
• Sum of all divisors σ(n): 270788918400
• Sum of proper divisors (its aliquot sum) s(n): 188999911152
• 81789007248 is an abundant number, because the sum of its proper divisors (188999911152) is greater than itself. Its abundance is 107210903904

Bases of 81789007248

• Binary: 1001100001011000000010011010110010000₂
• Hexadecimal: 0x130B013590
• Base-36: 11KN29W0

Squares and roots of 81789007248

• 81789007248 squared (81789007248²) is 6689441706613396533504
• 81789007248 cubed (81789007248³) is 547122796227276578612656730836992
• The square root of 81789007248 is 285987.7746477985
• The cube root of 81789007248 is 4340.7520490233

Scales and comparisons

• 81,789,007,248 seconds is equal to 2,600 years, 33 weeks, 1 day, 40 minutes, 48 seconds.
• To count from 1 to 81,789,007,248 would take you about five thousand, two hundred 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 81789007248 cubic inches would be around 361.7 feet tall.

Recreational maths with 81789007248

• 81789007248 backwards is 84270098718
• The number of decimal digits it has is: 11
• The sum of 81789007248's digits is 54
• More coming soon!