180145728

Names of 180145728

• Cardinal: 180145728 can be written as One hundred eighty million, one hundred forty-five thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.80145728 × 10⁸

Factors of 180145728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 346

Divisors of 180145728

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 53 54 56 63 64 72 84 96 106 108 112 126 144 159 168 189 192 212 216 224 252 281 288 318 336 371 378 424 432 448 477 504 562 576 636 672 742 756 843 848 864 954 1008 1113 1124 1272 1344 1431 1484 1512 1686 1696 1728 1908 1967 2016 2226 2248 2529 2544 2862 2968 3024 3339 3372 3392 3816 3934 4032 4452 4496 5058 5088 5724 5901 5936 6048 6678 6744 7587 7632 7868 8904 8992 10017 10116 10176 11448 11802 11872 12096 13356 13488 14893 15174 15264 15736 17703 17808 17984 20034 20232 22896 23604 23744 26712 26976 29786 30348 30528 31472 35406 35616 40068 40464 44679 45792 47208 53109 53424 53952 59572 60696 62944 70812 71232 80136 80928 89358 91584 94416 104251 106218 106848 119144 121392 125888 134037 141624 160272 161856 178716 188832 208502 212436 213696 238288 242784 268074 283248 312753 320544 357432 377664 402111 417004 424872 476576 485568 536148 566496 625506 641088 714864 804222 834008 849744 938259 953152 1072296 1132992 1251012 1429728 1608444 1668016 1699488 1876518 2144592 2502024 2814777 2859456 3216888 3336032 3398976 3753036 4289184 5004048 5629554 6433776 6672064 7506072 8578368 10008096 11259108 12867552 15012144 20016192 22518216 25735104 30024288 45036432 60048576 90072864 180145728
• Sum of all divisors σ(n): 618865920
• Sum of proper divisors (its aliquot sum) s(n): 438720192
• 180145728 is an abundant number, because the sum of its proper divisors (438720192) is greater than itself. Its abundance is 258574464

Bases of 180145728

• Binary: 1010101111001100111001000000₂
• Hexadecimal: 0xABCCE40
• Base-36: 2Z95C0

Squares and roots of 180145728

• 180145728 squared (180145728²) is 32452483316649984
• 180145728 cubed (180145728³) is 5846176232485765888868352
• The square root of 180145728 is 13421.8377281207
• The cube root of 180145728 is 564.7739487807

Scales and comparisons

• 180,145,728 seconds is equal to 5 years, 37 weeks, 6 days, 28 minutes, 48 seconds.
• To count from 1 to 180,145,728 would take you about eight 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 180145728 cubic inches would be around 47.1 feet tall.

Recreational maths with 180145728

• 180145728 backwards is 827541081
• 180145728 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 180145728's digits is 36
• More coming soon!