21439722816

Names of 21439722816

• Cardinal: 21439722816 can be written as Twenty-one billion, four hundred thirty-nine million, seven hundred twenty-two thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 2.1439722816 × 10¹⁰

Factors of 21439722816

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 114

Divisors of 21439722816

• Number of divisors d(n): 504
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 24 27 32 36 37 38 48 53 54 57 64 72 74 76 81 96 106 108 111 114 144 148 152 159 162 171 192 212 216 222 228 243 288 296 304 318 324 333 342 424 432 444 456 477 486 513 576 592 608 636 648 666 684 703 848 864 888 912 954 972 999 1007 1026 1184 1216 1272 1296 1332 1368 1369 1406 1431 1539 1696 1728 1776 1824 1908 1944 1961 1998 2014 2052 2109 2368 2544 2592 2664 2736 2738 2812 2862 2997 3021 3078 3392 3552 3648 3816 3888 3922 3996 4028 4104 4107 4218 4293 4617 5088 5184 5328 5472 5476 5624 5724 5883 5994 6042 6156 6327 7104 7632 7776 7844 7992 8056 8208 8214 8436 8586 8991 9063 9234 10176 10656 10944 10952 11248 11448 11766 11988 12084 12312 12321 12654 12879 15264 15552 15688 15984 16112 16416 16428 16872 17172 17649 17982 18126 18468 18981 21312 21904 22496 22896 23532 23976 24168 24624 24642 25308 25758 26011 27189 30528 31376 31968 32224 32832 32856 33744 34344 35298 35964 36252 36936 36963 37259 37962 43808 44992 45792 47064 47952 48336 49248 49284 50616 51516 52022 52947 54378 56943 62752 63936 64448 65712 67488 68688 70596 71928 72504 72557 73872 73926 74518 75924 78033 81567 87616 91584 94128 95904 96672 98496 98568 101232 103032 104044 105894 108756 110889 111777 113886 125504 131424 134976 137376 141192 143856 145008 145114 147744 147852 149036 151848 156066 158841 163134 170829 188256 191808 193344 197136 202464 206064 208088 211788 217512 217671 221778 223554 227772 234099 244701 262848 274752 282384 287712 290016 290228 295488 295704 298072 303696 312132 317682 326268 332667 335331 341658 376512 394272 404928 412128 416176 423576 435024 435342 443556 447108 455544 468198 476523 489402 564768 575424 580032 580456 591408 596144 607392 624264 635364 652536 653013 665334 670662 683316 702297 788544 824256 832352 847152 870048 870684 887112 894216 911088 936396 953046 978804 1005993 1129536 1160912 1182816 1192288 1214784 1248528 1270728 1305072 1306026 1330668 1341324 1366632 1378583 1404594 1664704 1694304 1740096 1741368 1774224 1788432 1822176 1872792 1906092 1957608 1959039 2011986 2106891 2321824 2365632 2384576 2497056 2541456 2610144 2612052 2661336 2682648 2733264 2757166 2809188 3017979 3388608 3482736 3548448 3576864 3644352 3745584 3812184 3915216 3918078 4023972 4135749 4213782 4643648 4994112 5082912 5220288 5224104 5322672 5365296 5466528 5514332 5618376 5877117 6035958 6320673 6965472 7096896 7153728 7491168 7624368 7830432 7836156 8047944 8271498 8427564 9053937 10165824 10448208 10645344 10730592 10933056 11028664 11236752 11754234 12071916 12407247 12641346 13930944 14982336 15248736 15660864 15672312 16095888 16542996 16855128 17631351 18107874 20896416 21290688 21461184 22057328 22473504 23508468 24143832 24814494 25282692 30497472 31344624 32191776 33085992 33710256 35262702 36215748 37221741 41792832 44114656 44947008 47016936 48287664 49628988 50565384 62689248 64383552 66171984 67420512 70525404 72431496 74443482 88229312 94033872 96575328 99257976 101130768 111665223 125378496 132343968 134841024 141050808 144862992 148886964 188067744 193150656 198515952 202261536 223330446 264687936 282101616 289725984 297773928 334995669 376135488 397031904 404523072 446660892 564203232 579451968 595547856 669991338 794063808 893321784 1128406464 1191095712 1339982676 1786643568 2382191424 2679965352 3573287136 5359930704 7146574272 10719861408 21439722816
• Sum of all divisors σ(n): 70246219680
• Sum of proper divisors (its aliquot sum) s(n): 48806496864
• 21439722816 is an abundant number, because the sum of its proper divisors (48806496864) is greater than itself. Its abundance is 27366774048

Bases of 21439722816

• Binary: 10011111101111010000011010101000000₂
• Hexadecimal: 0x4FDE83540
• Base-36: 9UKNO00

Squares and roots of 21439722816

• 21439722816 squared (21439722816²) is 459661714426910969856
• 21439722816 cubed (21439722816³) is 9855019746440319484822371434496
• The square root of 21439722816 is 146423.0952274947
• The cube root of 21439722816 is 2778.0478512439

Scales and comparisons

• 21,439,722,816 seconds is equal to 681 years, 37 weeks, 1 day, 22 hours, 33 minutes, 36 seconds.
• To count from 1 to 21,439,722,816 would take you about one thousand, three hundred sixty-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 21439722816 cubic inches would be around 231.5 feet tall.

Recreational maths with 21439722816

• 21439722816 backwards is 61822793412
• The number of decimal digits it has is: 11
• The sum of 21439722816's digits is 45
• More coming soon!