991338816
991,338,816 is an even composite number composed of six prime numbers multiplied together.
991338816 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred twenty-four divisors.
Prime factorization of 991338816:
26 × 3 × 13 × 17 × 61 × 383
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 13 × 17 × 61 × 383)See below for interesting mathematical facts about the number 991338816 from the Numbermatics database.
Names of 991338816
- Cardinal: 991338816 can be written as Nine hundred ninety-one million, three hundred thirty-eight thousand, eight hundred sixteen.
Scientific notation
- Scientific notation: 9.91338816 × 108
Factors of 991338816
Divisors of 991338816
- Number of divisors d(n): 224
-
Complete list of divisors:
1 2 3 4 6 8 12 13 16 17 24 26 32 34 39 48 51 52 61 64 68 78 96 102 104 122 136 156 183 192 204 208 221 244 272 312 366 383 408 416 442 488 544 624 663 732 766 793 816 832 884 976 1037 1088 1149 1248 1326 1464 1532 1586 1632 1768 1952 2074 2298 2379 2496 2652 2928 3064 3111 3172 3264 3536 3904 4148 4596 4758 4979 5304 5856 6128 6222 6344 6511 7072 8296 9192 9516 9958 10608 11712 12256 12444 12688 13022 13481 14144 14937 16592 18384 19032 19533 19916 21216 23363 24512 24888 25376 26044 26962 29874 33184 36768 38064 39066 39832 40443 42432 46726 49776 50752 52088 53924 59748 66368 70089 73536 76128 78132 79664 80886 84643 93452 99552 104176 107848 119496 140178 152256 156264 159328 161772 169286 186904 199104 208352 215696 238992 253929 280356 303719 312528 318656 323544 338572 373808 397171 416704 431392 477984 507858 560712 607438 625056 647088 677144 747616 794342 862784 911157 955968 1015716 1121424 1191513 1214876 1250112 1294176 1354288 1495232 1588684 1822314 2031432 2242848 2383026 2429752 2588352 2708576 3177368 3644628 4062864 4485696 4766052 4859504 5163223 5417152 6354736 7289256 8125728 9532104 9719008 10326446 12709472 14578512 15489669 16251456 19064208 19438016 20652892 25418944 29157024 30979338 38128416 41305784 58314048 61958676 76256832 82611568 123917352 165223136 247834704 330446272 495669408 991338816
- Sum of all divisors σ(n): 3047804928
- Sum of proper divisors (its aliquot sum) s(n): 2056466112
- 991338816 is an abundant number, because the sum of its proper divisors (2056466112) is greater than itself. Its abundance is 1065127296
Bases of 991338816
- Binary: 1110110001011010100001010000002
- Hexadecimal: 0x3B16A140
- Base-36: GE7TXC
Squares and roots of 991338816
- 991338816 squared (9913388162) is 982752648108281856
- 991338816 cubed (9913388163) is 974240846596528774921322496
-
The
square root of 991338816 is 31485.5334399785 -
The
cube root of 991338816 is 997.1045632037
Scales and comparisons
How big is 991338816?- 991,338,816 seconds is equal to 31 years, 27 weeks, 19 hours, 53 minutes, 36 seconds.
-
To count from 1 to 991,338,816 would take you about forty-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 991338816 cubic inches would be around 83.1 feet tall.
Recreational maths with 991338816
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