3138721872
3,138,721,872 is an even composite number composed of seven prime numbers multiplied together.
3138721872 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 3138721872:
24 × 3 × 11 × 13 × 19 × 41 × 587
(2 × 2 × 2 × 2 × 3 × 11 × 13 × 19 × 41 × 587)See below for interesting mathematical facts about the number 3138721872 from the Numbermatics database.
Names of 3138721872
- Cardinal: 3138721872 can be written as Three billion, one hundred thirty-eight million, seven hundred twenty-one thousand, eight hundred seventy-two.
Scientific notation
- Scientific notation: 3.138721872 × 109
Factors of 3138721872
Divisors of 3138721872
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 4 6 8 11 12 13 16 19 22 24 26 33 38 39 41 44 48 52 57 66 76 78 82 88 104 114 123 132 143 152 156 164 176 208 209 228 246 247 264 286 304 312 328 418 429 451 456 492 494 528 533 572 587 624 627 656 741 779 836 858 902 912 984 988 1066 1144 1174 1254 1353 1482 1558 1599 1672 1716 1761 1804 1968 1976 2132 2288 2337 2348 2508 2706 2717 2964 3116 3198 3344 3432 3522 3608 3952 4264 4674 4696 5016 5412 5434 5863 5928 6232 6396 6457 6864 7044 7216 7631 8151 8528 8569 9348 9392 10032 10127 10824 10868 11153 11726 11856 12464 12792 12914 14088 15262 16302 17138 17589 18696 19371 20254 21648 21736 22306 22893 23452 24067 25584 25707 25828 28176 30381 30524 32604 33459 34276 35178 37392 38742 40508 43472 44612 45786 46904 48134 51414 51656 60762 61048 65208 66918 68552 70356 72201 77484 81016 83941 89224 91572 93808 96268 102828 103312 111397 121524 122096 122683 130416 133836 137104 140712 144402 144989 154968 162032 167882 178448 183144 192536 205656 222794 243048 245366 251823 264737 267672 281424 288804 289978 309936 312871 334191 335764 366288 368049 385072 411312 434967 445588 457273 486096 490732 503646 529474 535344 577608 579956 625742 668382 671528 736098 794211 869934 891176 914546 938613 981464 1007292 1058948 1155216 1159912 1251484 1336764 1343056 1371819 1472196 1588422 1594879 1739868 1782352 1829092 1877226 1962928 2014584 2117896 2319824 2502968 2673528 2743638 2944392 3176844 3189758 3441581 3479736 3658184 3754452 4029168 4235792 4784637 5005936 5030003 5347056 5487276 5888784 5944549 6353688 6379516 6883162 6959472 7316368 7508904 9569274 10060006 10324743 10974552 11889098 12707376 12759032 13766324 15017808 15090009 17833647 19138548 20120012 20649486 21949104 23778196 25518064 27532648 30180018 35667294 38277096 40240024 41298972 47556392 55065296 60360036 65390039 71334588 76554192 80480048 82597944 95112784 120720072 130780078 142669176 165195888 196170117 241440144 261560156 285338352 392340234 523120312 784680468 1046240624 1569360936 3138721872
- Sum of all divisors σ(n): 10289341440
- Sum of proper divisors (its aliquot sum) s(n): 7150619568
- 3138721872 is an abundant number, because the sum of its proper divisors (7150619568) is greater than itself. Its abundance is 4011897696
Bases of 3138721872
- Binary: 101110110001010100011000010100002
- Hexadecimal: 0xBB151850
- Base-36: 1FWPPAO
Squares and roots of 3138721872
- 3138721872 squared (31387218722) is 9851574989771184384
- 3138721872 cubed (31387218723) is 30921353894042992701405646848
-
The
square root of 3138721872 is 56024.2971575727 -
The
cube root of 3138721872 is 1464.1456378153
Scales and comparisons
How big is 3138721872?- 3,138,721,872 seconds is equal to 99 years, 41 weeks, 4 days, 19 hours, 11 minutes, 12 seconds.
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To count from 1 to 3,138,721,872 would take you about one hundred ninety-nine 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 3138721872 cubic inches would be around 122 feet tall.
Recreational maths with 3138721872
- 3138721872 backwards is 2781278313
- The number of decimal digits it has is: 10
- The sum of 3138721872's digits is 42
- More coming soon!
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