21398157312

Names of 21398157312

• Cardinal: 21398157312 can be written as Twenty-one billion, three hundred ninety-eight million, one hundred fifty-seven thousand, three hundred twelve.

Scientific notation

• Scientific notation: 2.1398157312 × 10¹⁰

Factors of 21398157312

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 179

Divisors of 21398157312

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 17 21 24 28 32 34 37 42 48 49 51 56 64 68 74 84 96 98 102 111 112 113 119 128 136 147 148 168 192 196 204 222 224 226 238 256 259 272 294 296 336 339 357 384 392 408 444 448 452 476 512 518 544 588 592 629 672 678 714 768 777 784 791 816 833 888 896 904 952 1024 1036 1088 1176 1184 1258 1344 1356 1428 1536 1554 1568 1582 1632 1666 1776 1792 1808 1813 1887 1904 1921 2048 2072 2176 2352 2368 2373 2499 2516 2688 2712 2856 3072 3108 3136 3164 3264 3332 3552 3584 3616 3626 3774 3808 3842 4144 4181 4352 4403 4704 4736 4746 4998 5032 5376 5424 5439 5537 5712 5763 6144 6216 6272 6328 6528 6664 7104 7168 7232 7252 7548 7616 7684 8288 8362 8704 8806 9408 9472 9492 9996 10064 10752 10848 10878 11074 11424 11526 12432 12543 12544 12656 13056 13209 13328 13447 14208 14336 14464 14504 15096 15232 15368 16576 16611 16724 17408 17612 18816 18944 18984 19992 20128 21504 21696 21756 22148 22848 23052 24864 25086 25088 25312 26112 26418 26656 26894 28416 28928 29008 29267 30192 30464 30736 30821 33152 33222 33448 34816 35224 37632 37888 37968 39984 40256 40341 43008 43392 43512 44296 45696 46104 49728 50172 50176 50624 52224 52836 53312 53788 56832 57856 58016 58534 60384 60928 61472 61642 66304 66444 66896 70448 71077 75264 75776 75936 79968 80512 80682 86784 87024 87801 88592 91392 92208 92463 94129 99456 100344 100352 101248 104448 105672 106624 107576 113664 115712 116032 117068 120768 121856 122944 123284 132608 132888 133792 140896 142154 150528 151872 159936 161024 161364 173568 174048 175602 177184 182784 184416 184926 188258 198912 200688 202496 204869 211344 213231 213248 215152 227328 231424 232064 234136 241536 243712 245888 246568 265216 265776 267584 281792 282387 284308 301056 303744 319872 322048 322728 347136 348096 351204 354368 365568 368832 369852 376516 397824 401376 404992 409738 422688 426462 426496 430304 464128 468272 483072 491776 493136 497539 530432 531552 535168 563584 564774 568616 607488 614607 639744 644096 645456 694272 696192 702408 708736 731136 737664 739704 753032 795648 802752 809984 819476 845376 852924 852992 860608 928256 936544 966144 983552 986272 995078 1063104 1070336 1127168 1129548 1137232 1214976 1229214 1279488 1288192 1290912 1392384 1404816 1417472 1475328 1479408 1492617 1506064 1591296 1605504 1619968 1638952 1690752 1705848 1705984 1721216 1856512 1873088 1932288 1967104 1972544 1990156 2126208 2140672 2254336 2259096 2274464 2429952 2458428 2558976 2581824 2784768 2809632 2834944 2950656 2958816 2985234 3012128 3211008 3277904 3381504 3411696 3442432 3482773 3713024 3746176 3864576 3934208 3945088 3980312 4252416 4281344 4508672 4518192 4548928 4859904 4916856 5117952 5163648 5569536 5619264 5669888 5901312 5917632 5970468 6024256 6422016 6555808 6763008 6823392 6884864 6965546 7492352 7890176 7960624 8504832 8562688 9017344 9036384 9097856 9833712 10327296 10448319 11139072 11238528 11339776 11802624 11835264 11940936 12048512 12844032 13111616 13526016 13646784 13769728 13931092 14984704 15780352 15921248 17009664 18072768 18195712 19667424 20654592 20896638 22477056 23670528 23881872 24097024 25688064 26223232 27052032 27293568 27539456 27862184 29969408 31560704 31842496 34019328 36145536 36391424 39334848 41309184 41793276 44954112 47341056 47763744 48194048 52446464 54587136 55724368 59938816 63121408 63684992 72291072 72782848 78669696 82618368 83586552 89908224 94682112 95527488 96388096 104892928 109174272 111448736 127369984 144582144 145565696 157339392 167173104 179816448 189364224 191054976 192776192 209785856 218348544 222897472 254739968 289164288 314678784 334346208 382109952 419571712 436697088 445794944 509479936 578328576 629357568 668692416 764219904 891589888 1018959872 1258715136 1337384832 1528439808 1783179776 2674769664 3056879616 3566359552 5349539328 7132719104 10699078656 21398157312
• Sum of all divisors σ(n): 72803072160
• Sum of proper divisors (its aliquot sum) s(n): 51404914848
• 21398157312 is an abundant number, because the sum of its proper divisors (51404914848) is greater than itself. Its abundance is 30006757536

Bases of 21398157312

• Binary: 10011111011011011011111100000000000₂
• Hexadecimal: 0x4FB6DF800
• Base-36: 9TVWRUO

Squares and roots of 21398157312

• 21398157312 squared (21398157312²) is 457881136349099065344
• 21398157312 cubed (21398157312³) is 9797812585795343149703079395328
• The square root of 21398157312 is 146281.0900697695
• The cube root of 21398157312 is 2776.2514091555

Scales and comparisons

• 21,398,157,312 seconds is equal to 680 years, 20 weeks, 3 days, 20 hours, 35 minutes, 12 seconds.
• To count from 1 to 21,398,157,312 would take you about one thousand, three hundred sixty 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 21398157312 cubic inches would be around 231.4 feet tall.

Recreational maths with 21398157312

• 21398157312 backwards is 21375189312
• 21398157312 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21398157312's digits is 42
• More coming soon!