2138478342

Names of 2138478342

• Cardinal: 2138478342 can be written as Two billion, one hundred thirty-eight million, four hundred seventy-eight thousand, three hundred forty-two.

Scientific notation

• Scientific notation: 2.138478342 × 10⁹

Factors of 2138478342

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 546

Divisors of 2138478342

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 6 7 11 13 14 21 22 26 33 39 42 61 66 77 78 91 122 143 154 169 182 183 231 273 286 338 366 427 429 449 462 507 546 671 793 854 858 898 1001 1014 1183 1281 1342 1347 1586 1859 2002 2013 2366 2379 2562 2694 3003 3143 3549 3718 4026 4697 4758 4939 5551 5577 5837 6006 6286 7098 8723 9394 9429 9878 10309 11102 11154 11674 13013 14091 14817 16653 17446 17511 18858 20618 26026 26169 27389 28182 29634 30927 33306 34573 35022 39039 40859 52338 54778 61061 61854 64207 69146 72163 75881 78078 81718 82167 103719 113399 122122 122577 128414 144326 151762 164334 183183 191723 192621 207438 216489 226798 227643 245154 301279 340197 356057 366366 383446 385242 432978 449449 455286 531167 575169 602558 680394 712114 793793 834691 898898 903837 1062334 1068171 1150338 1348347 1587586 1593501 1669382 1807674 2108953 2136342 2381379 2492399 2504073 2696694 3187002 3916627 4217906 4628741 4762758 4984798 5008146 5842837 6326859 7477197 7833254 9257482 11685674 11749881 12653718 13886223 14954394 17528511 23499762 27416389 27772446 32401187 35057022 50916151 54832778 64802374 82249167 97203561 101832302 152748453 164498334 194407122 305496906 356413057 712826114 1069239171 2138478342
• Sum of all divisors σ(n): 5881766400
• Sum of proper divisors (its aliquot sum) s(n): 3743288058
• 2138478342 is an abundant number, because the sum of its proper divisors (3743288058) is greater than itself. Its abundance is 1604809716

Bases of 2138478342

• Binary: 1111111011101101001011100000110₂
• Hexadecimal: 0x7F769706
• Base-36: ZD70G6

Squares and roots of 2138478342

• 2138478342 squared (2138478342²) is 4573089619203068964
• 2138478342 cubed (2138478342³) is 9779453106690790279446377688
• The square root of 2138478342 is 46243.6843471625
• The cube root of 2138478342 is 1288.3532343119

Scales and comparisons

• 2,138,478,342 seconds is equal to 67 years, 51 weeks, 5 days, 21 hours, 45 minutes, 42 seconds.
• To count from 1 to 2,138,478,342 would take you about one hundred thirty-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 2138478342 cubic inches would be around 107.4 feet tall.

Recreational maths with 2138478342

• 2138478342 backwards is 2438748312
• 2138478342 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 2138478342's digits is 42
• More coming soon!