72138646720
72,138,646,720 is an even composite number composed of seven prime numbers multiplied together.
72138646720 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of six hundred seventy-two divisors.
Prime factorization of 72138646720:
26 × 5 × 72 × 19 × 31 × 73 × 107
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 7 × 19 × 31 × 73 × 107)See below for interesting mathematical facts about the number 72138646720 from the Numbermatics database.
Names of 72138646720
- Cardinal: 72138646720 can be written as Seventy-two billion, one hundred thirty-eight million, six hundred forty-six thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 7.213864672 × 1010
Factors of 72138646720
Divisors of 72138646720
- Number of divisors d(n): 672
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 19 20 28 31 32 35 38 40 49 56 62 64 70 73 76 80 95 98 107 112 124 133 140 146 152 155 160 190 196 214 217 224 245 248 266 280 292 304 310 320 365 380 392 428 434 448 490 496 511 532 535 560 584 589 608 620 665 730 749 760 784 856 868 931 980 992 1022 1064 1070 1085 1120 1168 1178 1216 1240 1330 1387 1460 1498 1519 1520 1568 1712 1736 1862 1960 1984 2033 2044 2128 2140 2170 2240 2263 2336 2356 2480 2555 2660 2774 2920 2945 2996 3038 3040 3136 3317 3424 3472 3577 3724 3745 3920 4066 4088 4123 4256 4280 4340 4526 4655 4672 4712 4960 5110 5243 5320 5548 5840 5890 5992 6076 6080 6634 6848 6935 6944 7154 7448 7490 7595 7811 7840 8132 8176 8246 8512 8560 8680 9052 9310 9424 9709 9920 10165 10220 10486 10640 11096 11315 11680 11780 11984 12152 13268 13870 13888 14231 14308 14896 14980 15190 15622 15680 15841 16264 16352 16492 16585 17120 17360 17885 18104 18620 18848 19418 20330 20440 20615 20972 21280 22192 22630 23219 23360 23560 23968 24304 26215 26536 27740 28462 28616 28861 29792 29960 30380 31244 31682 32528 32704 32984 33170 34240 34720 35770 36208 37240 37696 38836 39055 40660 40880 41230 41944 42560 42997 44384 45260 46438 47120 47936 48545 48608 52430 53072 54677 55480 56924 57232 57722 59584 59920 60760 62488 63023 63364 65056 65968 66340 67963 69440 71155 71540 72416 74480 77672 78110 79205 81320 81760 82460 83888 85994 88768 90520 92876 94240 97090 97216 99617 104860 106144 109354 110887 110960 113848 114464 115444 116095 119840 121520 124976 126046 126728 130112 131936 132680 135926 142310 143080 144305 144832 148409 148960 155344 156220 158410 162533 162640 163520 164920 167776 171988 181040 185752 188480 194180 199234 209720 212288 214985 218708 221774 221920 227696 228928 230888 232190 239680 242141 243040 249952 252092 253456 263872 265360 271852 273385 284620 286160 288610 296818 297920 300979 310688 312440 315115 316820 325066 325280 329840 335552 339815 343976 362080 371504 382739 388360 398468 419440 429970 437416 441161 443548 443840 455392 461776 464380 484282 486080 498085 499904 504184 506912 530720 543704 546770 554435 569240 572320 577220 593636 601958 621376 624880 630230 633640 650132 650560 659680 679630 687952 724160 742045 743008 765478 776720 796936 812665 838880 859940 874832 882322 887096 910784 923552 928760 968564 996170 1008368 1013824 1038863 1061440 1087408 1093540 1108870 1138480 1144640 1154440 1187272 1203916 1210705 1249760 1260460 1267280 1300264 1319360 1359260 1375904 1484090 1486016 1504895 1530956 1553440 1593872 1625330 1677760 1694987 1719880 1749664 1764644 1774192 1847104 1857520 1913695 1937128 1992340 2016736 2077726 2106853 2174816 2187080 2205805 2217740 2276960 2308880 2374544 2407832 2421410 2499520 2520920 2534560 2600528 2718520 2751808 2968180 3009790 3061912 3088127 3106880 3187744 3250660 3389974 3439760 3499328 3529288 3548384 3715040 3827390 3874256 3984680 4033472 4155452 4213706 4349632 4374160 4411610 4435480 4553920 4600679 4617760 4749088 4815664 4842820 5041840 5069120 5194315 5201056 5437040 5936360 6019580 6123824 6176254 6375488 6501320 6779948 6879520 7058576 7096768 7272041 7430080 7654780 7748512 7969360 8310904 8427412 8474935 8748320 8823220 8870960 9201358 9235520 9498176 9631328 9685640 10083680 10388630 10402112 10534265 10874080 11864909 11872720 12039160 12247648 12352508 13002640 13559896 13759040 14117152 14544082 15309560 15440635 15497024 15938720 16621808 16854824 16949870 17496640 17646440 17741920 18402716 19262656 19371280 20167360 20777260 21068530 21748160 23003395 23729818 23745440 24078320 24495296 24705016 26005280 27119792 28234304 29088164 30619120 30881270 31877440 32204753 33243616 33709648 33899740 35292880 35483840 36360205 36805432 38742560 41554520 42137060 46006790 47459636 47490880 48156640 49410032 52010560 54239584 58176328 59324545 61238240 61762540 64409506 66487232 67419296 67799480 70585760 72720410 73610864 77485120 83109040 84274120 92013580 94919272 96313280 98820064 108479168 116352656 118649090 122476480 123525080 128819012 134838592 135598960 141171520 145440820 147221728 161023765 166218080 168548240 184027160 189838544 197640128 225433271 232705312 237298180 247050160 257638024 271197920 290881640 294443456 322047530 332436160 337096480 368054320 379677088 450866542 465410624 474596360 494100320 515276048 542395840 581763280 644095060 674192960 736108640 759354176 901733084 949192720 988200640 1030552096 1127166355 1163526560 1288190120 1472217280 1803466168 1898385440 2061104192 2254332710 2327053120 2576380240 3606932336 3796770880 4508665420 5152760480 7213864672 9017330840 10305520960 14427729344 18034661680 36069323360 72138646720
- Sum of all divisors σ(n): 222159697920
- Sum of proper divisors (its aliquot sum) s(n): 150021051200
- 72138646720 is an abundant number, because the sum of its proper divisors (150021051200) is greater than itself. Its abundance is 77882404480
Bases of 72138646720
- Binary: 10000110010111100110001100100110000002
- Hexadecimal: 0x10CBCC64C0
- Base-36: X51HK1S
Squares and roots of 72138646720
- 72138646720 squared (721386467202) is 5203984350592966758400
- 72138646720 cubed (721386467203) is 375408388603834651500921192448000
-
The
square root of 72138646720 is 268586.3859543147 -
The
cube root of 72138646720 is 4162.8362746237
Scales and comparisons
How big is 72138646720?- 72,138,646,720 seconds is equal to 2,293 years, 40 weeks, 6 days, 58 minutes, 40 seconds.
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To count from 1 to 72,138,646,720 would take you about four thousand, five hundred eighty-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 72138646720 cubic inches would be around 346.9 feet tall.
Recreational maths with 72138646720
- 72138646720 backwards is 02764683127
- The number of decimal digits it has is: 11
- The sum of 72138646720's digits is 46
- More coming soon!
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