642172903521920

Names of 642172903521920

• Cardinal: 642172903521920 can be written as Six hundred forty-two trillion, one hundred seventy-two billion, nine hundred three million, five hundred twenty-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 6.4217290352192 × 10¹⁴

Factors of 642172903521920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 516

Divisors of 642172903521920

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 4 5 8 10 16 17 20 31 32 34 40 62 64 68 80 85 124 128 136 155 160 170 248 272 289 310 320 340 461 496 527 544 578 620 640 680 922 961 992 1054 1088 1156 1240 1360 1445 1844 1922 1984 2108 2176 2305 2312 2480 2635 2720 2890 3688 3844 3968 4216 4610 4624 4805 4913 4960 5270 5440 5780 7376 7688 7837 8432 8959 9220 9248 9610 9826 9920 10540 10880 11560 14291 14752 15376 15674 16337 16864 17918 18440 18496 19220 19652 19840 21080 23120 24565 28582 29504 30752 31348 32674 33728 35836 36880 36992 38440 39185 39304 42160 44795 46240 49130 57164 59008 61504 62696 65348 67456 71455 71672 73760 76880 78370 78608 81685 84320 89590 92480 98260 114328 123008 125392 130696 133229 142910 143344 147520 152303 153760 156740 157216 163370 168640 179180 184960 196520 212521 228656 242947 250784 261392 266458 277729 285820 286688 295040 304606 307520 313480 314432 326740 337280 358360 393040 425042 443021 457312 485894 501568 522784 532916 555458 571640 573376 609212 615040 626960 628864 653480 666145 716720 761515 786080 850084 886042 914624 971788 1003136 1045568 1062605 1065832 1110916 1143280 1146752 1214735 1218424 1253920 1306960 1332290 1388645 1433440 1523030 1572160 1700168 1772084 1829248 1943576 2091136 2125210 2131664 2215105 2221832 2264893 2286560 2429470 2436848 2507840 2613920 2664580 2777290 2866880 3046060 3144320 3400336 3544168 3612857 3887152 4130099 4250420 4263328 4430210 4443664 4529786 4573120 4721393 4858940 4873696 5015680 5227840 5329160 5554580 5733760 6092120 6588151 6800672 7088336 7225714 7531357 7774304 8260198 8500840 8526656 8860420 8887328 9059572 9146240 9442786 9717880 9747392 10455680 10658320 11109160 11324465 12184240 13176302 13601344 14176672 14451428 15062714 15548608 16520396 17001680 17053312 17720840 17774656 18064285 18119144 18885572 19435760 19494784 20650495 21316640 22218320 22648930 23606965 24368480 26352604 27202688 28353344 28902856 30125428 31097216 32940755 33040792 34003360 35441680 35549312 36128570 36238288 37656785 37771144 38871520 41300990 42633280 44436640 45297860 47213930 48736960 52705208 56706688 57805712 60250856 61418569 65881510 66081584 68006720 70211683 70883360 72257140 72476576 75313570 75542288 77743040 82601980 85266560 88873280 90595720 94427860 97473920 105410416 111998567 115611424 120501712 122837138 128033069 131763020 132163168 136013440 140423366 141766720 144514280 144953152 150627140 151084576 155486080 165203960 177746560 181191440 188855720 204232681 210820832 223997134 231222848 241003424 245674276 256066138 263526040 264326336 280846732 283533440 289028560 289906304 301254280 302169152 307092845 330407920 351058415 362382880 377711440 408465362 421641664 447994268 462445696 482006848 491348552 512132276 527052080 528652672 559992835 561693464 578057120 602508560 604338304 614185690 640165345 660815840 702116830 724765760 755422880 816930724 843283328 895988536 964013696 982697104 1021163405 1024264552 1044115673 1054104160 1119985670 1123386928 1156114240 1205017120 1228371380 1280330690 1321631680 1404233660 1449531520 1510845760 1633861448 1791977072 1903975639 1965394208 2042326810 2048529104 2088231346 2108208320 2176562173 2239971340 2246773856 2312228480 2410034240 2456742760 2560661380 2643263360 2808467320 3021691520 3267722896 3471955577 3583954144 3807951278 3930788416 4084653620 4097058208 4176462692 4216416640 4353124346 4479942680 4493547712 4820068480 4913485520 5121322760 5220578365 5616934640 6535445792 6943911154 7167908288 7615902556 7861576832 8169307240 8194116416 8352925384 8706248692 8959885360 8987095424 9519878195 9826971040 10242645520 10441156730 10882810865 11233869280 13070891584 13887822308 14335816576 15231805112 16338614480 16388232832 16705850768 17359777885 17412497384 17919770720 19039756390 19653942080 20485291040 20882313460 21765621730 22467738560 26141783168 27775644616 30463610224 32367585863 32677228960 33411701536 34719555770 34824994768 35839541440 38079512780 39307884160 40970582080 41764626920 43531243460 44935477120 55551289232 59023244809 60927220448 64735171726 65354457920 66823403072 69439111540 69649989536 71679082880 76159025560 81941164160 83529253840 87062486920 111102578464 118046489618 121854440896 129470343452 130708915840 133646806144 138878223080 139299979072 152318051120 161837929315 167058507680 174124973840 222205156928 236092979236 243708881792 258940686904 277756446160 278599958144 295116224045 304636102240 323675858630 334117015360 348249947680 444410313856 472185958472 517881373808 555512892320 590232448090 609272204480 647351717260 668234030720 696499895360 944371916944 1003395161753 1035762747616 1111025784640 1180464896180 1218544408960 1294703434520 1392999790720 1888743833888 2006790323506 2071525495232 2222051569280 2360929792360 2589406869040 3777487667776 4013580647012 4143050990464 4721859584720 5016975808765 5178813738080 7554975335552 8027161294024 9443719169440 10033951617530 10357627476160 16054322588048 18887438338880 20067903235060 20715254952320 32108645176096 37774876677760 40135806470120 64217290352192 80271612940240 128434580704384 160543225880480 321086451760960 642172903521920
• Sum of all divisors σ(n): 1689102957605400
• Sum of proper divisors (its aliquot sum) s(n): 1046930054083480
• 642172903521920 is an abundant number, because the sum of its proper divisors (1046930054083480) is greater than itself. Its abundance is 404757150561560

Bases of 642172903521920

• Binary: 10010010000000110110000111110011000111111010000000₂
• Hexadecimal: 0x2480D87CC7E80
• Base-36: 6BMQ5QCDQ8

Squares and roots of 642172903521920

• 642172903521920 squared (642172903521920²) is 412386038017773172339920486400
• 642172903521920 cubed (642172903521920³) is 264823139405774284639282215648311319461888000
• The square root of 642172903521920 is 25341130.6677882863
• The cube root of 642172903521920 is 86274.8061571837

Scales and comparisons

• 642,172,903,521,920 seconds is equal to 20,419,111 years, 49 weeks, 6 days, 17 hours, 25 minutes, 20 seconds.
• To count from 1 to 642,172,903,521,920 would take you about fifty-one million, forty-seven thousand, seven hundred seventy-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 642172903521920 cubic inches would be around 7189.6 feet tall.

Recreational maths with 642172903521920

• 642172903521920 backwards is 029125309271246
• The number of decimal digits it has is: 15
• The sum of 642172903521920's digits is 53
• More coming soon!