21356431413936

Names of 21356431413936

• Cardinal: 21356431413936 can be written as Twenty-one trillion, three hundred fifty-six billion, four hundred thirty-one million, four hundred thirteen thousand, nine hundred thirty-six.

Scientific notation

• Scientific notation: 2.1356431413936 × 10¹³

Factors of 21356431413936

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 176133

Divisors of 21356431413936

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 12 16 17 24 34 48 51 53 68 102 106 136 159 204 212 272 318 408 424 636 816 848 901 1272 1802 2544 2703 2851 3604 5406 5702 7208 8553 10812 11404 14416 17106 21624 22808 34212 43248 45616 48467 68424 96934 136848 145401 151103 173207 193868 290802 302206 346414 387736 453309 519621 581604 604412 692828 775472 906618 1039242 1163208 1208824 1385656 1813236 2078484 2326416 2417648 2568751 2771312 2944519 3626472 4156968 5137502 5889038 7252944 7706253 8313936 8833557 9179971 10275004 11778076 15412506 17667114 18359942 20550008 23556152 27539913 30825012 35334228 36719884 41100016 47112304 55079826 61650024 70668456 73439768 110159652 123300048 141336912 146879536 156059507 220319304 312119014 440638608 468178521 493813157 624238028 936357042 987626314 1248476056 1481439471 1872714084 1975252628 2496952112 2962878942 3745428168 3950505256 5925757884 7490856336 7901010512 8394823669 11851515768 16789647338 23703031536 25184471007 26172097321 33579294676 50368942014 52344194642 67158589352 78516291963 100737884028 104688389284 134317178704 157032583926 201475768056 209376778568 314065167852 402951536112 418753557136 444925654457 628130335704 889851308914 1256260671408 1334776963371 1779702617828 2669553926742 3559405235656 5339107853484 7118810471312 10678215706968 21356431413936
• Sum of all divisors σ(n): 59539532226048
• Sum of proper divisors (its aliquot sum) s(n): 38183100812112
• 21356431413936 is an abundant number, because the sum of its proper divisors (38183100812112) is greater than itself. Its abundance is 16826669398176

Bases of 21356431413936

• Binary: 100110110110001101110100000100001001010110000₂
• Hexadecimal: 0x136C6E8212B0
• Base-36: 7KJ0BUUUO

Squares and roots of 21356431413936

• 21356431413936 squared (21356431413936²) is 456097162738152416175012096
• 21356431413936 cubed (21356431413936³) is 9740607774108158298704788294209182969856
• The square root of 21356431413936 is 4621301.9176348995
• The cube root of 21356431413936 is 27744.4569352933

Scales and comparisons

• 21,356,431,413,936 seconds is equal to 679,068 years, 23 weeks, 6 days, 3 hours, 25 minutes, 36 seconds.
• To count from 1 to 21,356,431,413,936 would take you about one million, six hundred ninety-seven thousand, six hundred seventy-one 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 21356431413936 cubic inches would be around 2312 feet tall.

Recreational maths with 21356431413936

• 21356431413936 backwards is 63931413465312
• 21356431413936 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21356431413936's digits is 51
• More coming soon!