21478438432
21,478,438,432 is an even composite number composed of seven prime numbers multiplied together.
21478438432 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21478438432:
25 × 11 × 19 × 29 × 37 × 41 × 73
(2 × 2 × 2 × 2 × 2 × 11 × 19 × 29 × 37 × 41 × 73)See below for interesting mathematical facts about the number 21478438432 from the Numbermatics database.
Names of 21478438432
- Cardinal: 21478438432 can be written as Twenty-one billion, four hundred seventy-eight million, four hundred thirty-eight thousand, four hundred thirty-two.
Scientific notation
- Scientific notation: 2.1478438432 × 1010
Factors of 21478438432
Divisors of 21478438432
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 4 8 11 16 19 22 29 32 37 38 41 44 58 73 74 76 82 88 116 146 148 152 164 176 209 232 292 296 304 319 328 352 407 418 451 464 551 584 592 608 638 656 703 779 803 814 836 902 928 1073 1102 1168 1184 1189 1276 1312 1387 1406 1517 1558 1606 1628 1672 1804 2117 2146 2204 2336 2378 2552 2701 2774 2812 2993 3034 3116 3212 3256 3344 3608 4234 4292 4408 4756 5104 5402 5548 5624 5986 6061 6068 6232 6424 6512 6688 7216 7733 8468 8569 8584 8816 9512 10208 10804 11096 11248 11803 11972 12122 12136 12464 12848 13024 13079 14432 15257 15466 16687 16936 17138 17168 17632 19024 20387 21608 22192 22496 22591 23287 23606 23944 24244 24272 24928 25696 26158 28823 29711 30514 30932 32923 33374 33872 34276 34336 38048 40223 40774 43216 43993 44384 45182 46574 47212 47888 48488 48544 51319 52316 56867 57646 59422 61028 61864 65846 66748 67744 68552 78329 80446 81548 86432 86797 87986 90364 93148 94424 95776 96976 102638 104632 110741 113734 115292 118844 122056 123728 131692 133496 137104 156658 160892 163096 173594 175972 180728 186296 188848 193952 205276 209264 221482 224257 227468 230584 237688 244112 247456 248501 263384 266992 274208 313316 317053 321784 326192 347188 351944 361456 372592 377696 410552 418528 442453 442964 448514 454936 461168 475376 483923 488224 497002 526768 533984 564509 625537 626632 634106 643568 652384 694376 703888 722912 745184 821104 835867 861619 884906 885928 897028 909872 922336 950752 954767 967846 994004 1053536 1129018 1218151 1251074 1253264 1268212 1287136 1388752 1407776 1488251 1642208 1649143 1671734 1723238 1769812 1771856 1794056 1819744 1909534 1935692 1988008 2104079 2258036 2436302 2502148 2506528 2536424 2777504 2976502 3211489 3298286 3343468 3446476 3539624 3543712 3588112 3819068 3871384 3976016 4208158 4516072 4872604 5004296 5072848 5953004 6422978 6596572 6686936 6892952 7079248 7176224 7638136 7742768 7952032 8416316 9032144 9194537 9745208 10008592 10145696 11906008 12845956 13193144 13373872 13785904 14158496 15276272 15485536 16370761 16832632 18064288 18140573 18389074 19490416 20017184 23144869 23812016 25691912 26386288 26747744 27571808 30552544 32741522 33665264 35326379 36281146 36778148 38980832 46289738 47624032 51383824 52772576 61018291 65483044 67330528 70652758 72562292 73556296 92579476 102767648 122036582 130966088 141305516 145124584 147112592 185158952 244073164 261932176 282611032 290249168 294225184 370317904 488146328 523864352 565222064 580498336 671201201 740635808 976292656 1130444128 1342402402 1952585312 2684804804 5369609608 10739219216 21478438432
- Sum of all divisors σ(n): 53571974400
- Sum of proper divisors (its aliquot sum) s(n): 32093535968
- 21478438432 is an abundant number, because the sum of its proper divisors (32093535968) is greater than itself. Its abundance is 10615097536
Bases of 21478438432
- Binary: 101000000000011011011110110001000002
- Hexadecimal: 0x50036F620
- Base-36: 9V7PH5S
Squares and roots of 21478438432
- 21478438432 squared (214784384322) is 461323317477214618624
- 21478438432 cubed (214784384323) is 9908504471680343748965944557568
-
The
square root of 21478438432 is 146555.2402065515 -
The
cube root of 21478438432 is 2779.7190351453
Scales and comparisons
How big is 21478438432?- 21,478,438,432 seconds is equal to 682 years, 49 weeks, 2 days, 53 minutes, 52 seconds.
-
To count from 1 to 21,478,438,432 would take you about one thousand, three hundred sixty-five 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 21478438432 cubic inches would be around 231.6 feet tall.
Recreational maths with 21478438432
- 21478438432 backwards is 23483487412
- The number of decimal digits it has is: 11
- The sum of 21478438432's digits is 46
- More coming soon!
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