21437872942928

Names of 21437872942928

• Cardinal: 21437872942928 can be written as Twenty-one trillion, four hundred thirty-seven billion, eight hundred seventy-two million, nine hundred forty-two thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1437872942928 × 10¹³

Factors of 21437872942928

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 571

Divisors of 21437872942928

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 8 13 16 17 26 29 34 52 58 61 68 104 116 122 136 208 221 232 244 272 289 377 442 449 464 488 493 578 754 793 884 898 976 986 1037 1156 1508 1586 1768 1769 1796 1972 2074 2312 3016 3172 3536 3538 3592 3757 3944 4148 4624 5837 6032 6344 6409 7076 7184 7514 7633 7888 8296 8381 11674 12688 12818 13021 13481 14152 15028 15266 16592 16762 17629 22997 23348 25636 26042 26962 27389 28304 30056 30073 30532 33524 35258 45994 46696 51272 52084 53924 54778 60112 60146 61064 67048 70516 91988 93392 99229 102544 104168 107848 108953 109556 120292 122128 129761 134096 141032 169273 183976 198458 201601 208336 215696 217906 219112 221357 229177 240584 259522 282064 338546 356057 367952 390949 396916 403202 435812 438224 442714 458354 465613 481168 511241 519044 677092 712114 781898 793832 794281 806404 871624 885428 916708 931226 1022482 1038088 1354184 1424228 1563796 1587664 1588562 1612808 1686893 1743248 1770856 1833416 1862452 2044964 2076176 2620813 2708368 2848456 2877641 3127592 3177124 3225616 3373786 3427217 3541712 3666832 3724904 3763069 4089928 5241626 5696912 5755282 5846429 6052969 6255184 6354248 6646133 6747572 6854434 7449808 7526138 7915421 8179856 10325653 10483252 11510564 11692858 12105938 12297661 12708496 13292266 13495144 13502777 13708868 15052276 15830842 20651306 20966504 23021128 23385716 24211876 24595322 26584532 26990288 27005554 27417736 30104552 31661684 41302612 41933008 44553821 46042256 46771432 48423752 48919897 49190644 53169064 54011108 54835472 58262689 60209104 63323368 76003577 82605224 89107642 93542864 96847504 97839794 98381288 99389293 102900473 106338128 108022216 116525378 126646736 152007154 159869593 165210448 175536101 178215284 195679588 196762576 198778586 205800946 209060237 216044432 229547209 233050756 304014308 319739186 351072202 356430568 356632169 391359176 397557172 411601892 418120474 459094418 466101512 608028616 639478372 702144404 712861136 713264338 757414957 782718352 795114344 823203784 836240948 918188836 932203024 1216057232 1278956744 1292060809 1404288808 1426528676 1514829914 1590228688 1646407568 1672481896 1689617981 1836377672 2557913488 2584121618 2717783081 2808577616 2853057352 2984113717 3029659828 3344963792 3379235962 3554024029 3672755344 4636218197 5168243236 5435566162 5706114704 5968227434 6059319656 6062746873 6758471924 7108048058 9272436394 10336486472 10871132324 11936454868 12118639312 12125493746 13516943848 14216096116 18544872788 20672972944 21742264648 21965033753 23872909736 24250987492 27033887696 28432192232 37089745576 43484529296 43930067506 46202312377 47745819472 48501974984 56864384464 74179491152 78815709349 87860135012 92404624754 97003949968 103066696841 157631418698 175720270024 184809249508 206133393682 315262837396 351440540048 369618499016 412266787364 630525674792 739236998032 824533574728 1261051349584 1339867058933 1649067149456 2679734117866 5359468235732 10718936471464 21437872942928
• Sum of all divisors σ(n): 50072820316680
• Sum of proper divisors (its aliquot sum) s(n): 28634947373752
• 21437872942928 is an abundant number, because the sum of its proper divisors (28634947373752) is greater than itself. Its abundance is 7197074430824

Bases of 21437872942928

• Binary: 100110111111101100100110011010010111101010000₂
• Hexadecimal: 0x137F64CD2F50
• Base-36: 7LKF81GSW

Squares and roots of 21437872942928

• 21437872942928 squared (21437872942928²) is 459582396317124427545213184
• 21437872942928 cubed (21437872942928³) is 9852469019052894680301056667657225162752
• The square root of 21437872942928 is 4630105.0682385167
• The cube root of 21437872942928 is 27779.6794996647

Scales and comparisons

• 21,437,872,942,928 seconds is equal to 681,658 years, 2 weeks, 3 days, 10 hours, 22 minutes, 8 seconds.
• To count from 1 to 21,437,872,942,928 would take you about one million, seven hundred four thousand, one hundred forty-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 21437872942928 cubic inches would be around 2315 feet tall.

Recreational maths with 21437872942928

• 21437872942928 backwards is 82924927873412
• 21437872942928 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21437872942928's digits is 68
• More coming soon!