155420029440

Names of 155420029440

• Cardinal: 155420029440 can be written as One hundred fifty-five billion, four hundred twenty million, twenty-nine thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.5542002944 × 10¹¹

Factors of 155420029440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 669

Divisors of 155420029440

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 29 30 32 36 39 40 45 48 52 58 60 64 65 72 78 80 87 90 96 104 116 117 120 128 130 144 145 156 160 174 180 192 195 208 232 234 240 256 260 261 288 290 312 320 348 360 377 384 390 416 435 464 468 480 512 520 522 576 580 585 617 624 640 696 720 754 768 780 832 841 870 928 936 960 1040 1044 1131 1152 1160 1170 1234 1248 1280 1305 1392 1440 1508 1536 1560 1664 1682 1740 1851 1856 1872 1885 1920 2080 2088 2262 2304 2320 2340 2468 2496 2523 2560 2610 2784 2880 3016 3085 3120 3328 3364 3393 3480 3702 3712 3744 3770 3840 4160 4176 4205 4524 4608 4640 4680 4936 4992 5046 5220 5553 5568 5655 5760 6032 6170 6240 6656 6728 6786 6960 7404 7424 7488 7540 7569 7680 8021 8320 8352 8410 9048 9255 9280 9360 9872 9984 10092 10440 10933 11106 11136 11310 11520 12064 12340 12480 12615 13456 13572 13920 14808 14848 14976 15080 15138 16042 16640 16704 16820 16965 17893 18096 18510 18560 18720 19744 19968 20184 20880 21866 22212 22272 22620 23040 24063 24128 24680 24960 25230 26912 27144 27765 27840 29616 29952 30160 30276 32084 32799 33280 33408 33640 33930 35786 36192 37020 37120 37440 37845 39488 40105 40368 41760 43732 44424 44544 45240 48126 48256 49360 49920 50460 53679 53824 54288 54665 55530 55680 59232 59904 60320 60552 64168 65598 66816 67280 67860 71572 72189 72384 74040 74240 74880 75690 78976 80210 80736 83520 87464 88848 89465 90480 96252 96512 98397 98720 99840 100920 107358 107648 108576 109330 111060 111360 118464 120315 120640 121104 128336 131196 133632 134560 135720 143144 144378 144768 148080 149760 151380 157952 160420 161037 161472 163995 167040 174928 177696 178930 180960 192504 193024 196794 197440 201840 214716 215296 217152 218660 222120 222720 232609 236928 240630 241280 242208 256672 262392 268395 269120 271440 286288 288756 289536 296160 299520 302760 315904 320840 322074 322944 327990 334080 349856 355392 357860 360945 361920 385008 393588 394880 403680 429432 430592 434304 437320 444240 465218 473856 481260 482560 484416 491985 513344 518897 524784 536790 538240 542880 572576 577512 579072 592320 605520 641680 644148 645888 655980 668160 697827 699712 710784 715720 721890 723840 770016 787176 789760 805185 807360 858864 868608 874640 888480 930436 947712 962520 965120 968832 983970 1026688 1037794 1049568 1073580 1076480 1085760 1145152 1155024 1163045 1184640 1211040 1283360 1288296 1291776 1311960 1395654 1399424 1421568 1431440 1443780 1447680 1540032 1556691 1574352 1579520 1610370 1614720 1717728 1737216 1749280 1776960 1860872 1925040 1937664 1967940 2053376 2075588 2093481 2099136 2147160 2152960 2171520 2290304 2310048 2326090 2369280 2422080 2566720 2576592 2594485 2623920 2791308 2798848 2843136 2862880 2887560 2895360 3080064 3113382 3148704 3220740 3229440 3435456 3489135 3498560 3553920 3721744 3850080 3875328 3935880 4106752 4151176 4186962 4198272 4294320 4343040 4580608 4620096 4652180 4670073 4738560 4844160 5133440 5153184 5188970 5247840 5582616 5597696 5725760 5775120 6160128 6226764 6297408 6441480 6458880 6745661 6870912 6978270 6997120 7107840 7443488 7700160 7783455 7871760 8302352 8373924 8396544 8588640 8686080 9161216 9240192 9304360 9340146 9688320 10266880 10306368 10377940 10467405 10495680 11165232 11451520 11550240 12320256 12453528 12594816 12882960 13491322 13741824 13956540 13994240 14215680 14886976 15400320 15566910 15743520 16604704 16747848 16793088 17177280 18480384 18608720 18680292 19376640 20236983 20533760 20612736 20755880 20934810 20991360 22330464 22903040 23100480 23350365 24907056 25189632 25765920 26982644 27483648 27913080 27988480 29773952 30800640 31133820 31487040 33209408 33495696 33728305 34354560 36960768 37217440 37360584 40473966 41225472 41511760 41869620 41982720 44660928 45806080 46200960 46700730 49814112 50379264 51531840 53965288 55826160 59547904 60710949 61601280 62267640 62974080 66418816 66991392 67456610 68709120 74434880 74721168 80947932 82450944 83023520 83739240 83965440 89321856 92401920 93401460 99628224 101184915 103063680 107930576 111652320 119095808 121421898 124535280 125948160 132837632 133982784 134913220 137418240 148869760 149442336 161895864 166047040 167478480 178643712 184803840 186802920 199256448 202369830 206127360 215861152 223304640 242843796 249070560 251896320 265675264 267965568 269826440 297739520 298884672 303554745 323791728 332094080 334956960 357287424 373605840 398512896 404739660 412254720 431722304 446609280 485687592 498141120 535931136 539652880 595479040 597769344 607109490 647583456 664188160 669913920 747211680 797025792 809479320 863444608 893218560 971375184 996282240 1071862272 1079305760 1195538688 1214218980 1295166912 1328376320 1339827840 1494423360 1618958640 1726889216 1786437120 1942750368 1992564480 2158611520 2391077376 2428437960 2590333824 2679655680 2988846720 3237917280 3453778432 3885500736 3985128960 4317223040 4856875920 5180667648 5359311360 5977693440 6475834560 7771001472 8634446080 9713751840 10361335296 11955386880 12951669120 15542002944 17268892160 19427503680 25903338240 31084005888 38855007360 51806676480 77710014720 155420029440
• Sum of all divisors σ(n): 601318966248
• Sum of proper divisors (its aliquot sum) s(n): 445898936808
• 155420029440 is an abundant number, because the sum of its proper divisors (445898936808) is greater than itself. Its abundance is 290478907368

Bases of 155420029440

• Binary: 10010000101111110000010111001000000000₂
• Hexadecimal: 0x242FC17200
• Base-36: 1ZED2M80

Squares and roots of 155420029440

• 155420029440 squared (155420029440²) is 24155385551130466713600
• 155420029440 cubed (155420029440³) is 3754230733491247761908652048384000
• The square root of 155420029440 is 394233.4707251531
• The cube root of 155420029440 is 5376.5331635335

Scales and comparisons

• 155,420,029,440 seconds is equal to 4,941 years, 45 weeks, 3 days, 22 hours, 24 minutes.
• To count from 1 to 155,420,029,440 would take you about nine thousand, eight hundred eighty-three 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 155420029440 cubic inches would be around 448 feet tall.

Recreational maths with 155420029440

• 155420029440 backwards is 044920024551
• 155420029440 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 155420029440's digits is 36
• More coming soon!