142289728

Names of 142289728

• Cardinal: 142289728 can be written as One hundred forty-two million, two hundred eighty-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.42289728 × 10⁸

Factors of 142289728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 183

Divisors of 142289728

• Number of divisors d(n): 126
• Complete list of divisors:
  1 2 4 7 8 14 16 17 28 32 34 49 56 64 68 98 112 119 136 157 196 224 238 272 289 314 392 448 476 544 578 628 784 833 952 1088 1099 1156 1256 1568 1666 1904 2023 2198 2312 2512 2669 3136 3332 3808 4046 4396 4624 5024 5338 6664 7616 7693 8092 8792 9248 10048 10676 13328 14161 15386 16184 17584 18496 18683 21352 26656 28322 30772 32368 35168 37366 42704 45373 53312 56644 61544 64736 70336 74732 85408 90746 113288 123088 129472 130781 149464 170816 181492 226576 246176 261562 298928 317611 362984 453152 492352 523124 597856 635222 725968 906304 1046248 1195712 1270444 1451936 2092496 2223277 2540888 2903872 4184992 4446554 5081776 8369984 8893108 10163552 17786216 20327104 35572432 71144864 142289728
• Sum of all divisors σ(n): 351134934
• Sum of proper divisors (its aliquot sum) s(n): 208845206
• 142289728 is an abundant number, because the sum of its proper divisors (208845206) is greater than itself. Its abundance is 66555478

Bases of 142289728

• Binary: 1000011110110010101101000000₂
• Hexadecimal: 0x87B2B40
• Base-36: 2CPRGG

Squares and roots of 142289728

• 142289728 squared (142289728²) is 20246366694313984
• 142289728 cubed (142289728³) is 2880850009922195929956352
• The square root of 142289728 is 11928.5258100067
• The cube root of 142289728 is 522.0649254005

Scales and comparisons

• 142,289,728 seconds is equal to 4 years, 27 weeks, 1 day, 20 hours, 55 minutes, 28 seconds.
• To count from 1 to 142,289,728 would take you about six 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 142289728 cubic inches would be around 43.5 feet tall.

Recreational maths with 142289728

• 142289728 backwards is 827982241
• The number of decimal digits it has is: 9
• The sum of 142289728's digits is 43
• More coming soon!