428386644

Names of 428386644

• Cardinal: 428386644 can be written as Four hundred twenty-eight million, three hundred eighty-six thousand, six hundred forty-four.

Scientific notation

• Scientific notation: 4.28386644 × 10⁸

Factors of 428386644

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 720

Divisors of 428386644

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 31 36 42 54 62 63 81 84 93 108 124 126 162 186 189 217 243 252 279 324 372 378 434 486 558 567 651 677 729 756 837 868 972 1116 1134 1302 1354 1458 1674 1701 1953 2031 2268 2511 2604 2708 2916 3348 3402 3906 4062 4739 5022 5103 5859 6093 6804 7533 7812 8124 9478 10044 10206 11718 12186 14217 15066 17577 18279 18956 20412 20987 22599 23436 24372 28434 30132 35154 36558 41974 42651 45198 52731 54837 56868 62961 70308 73116 83948 85302 90396 105462 109674 125922 127953 146909 158193 164511 170604 188883 210924 219348 251844 255906 293818 316386 329022 377766 383859 440727 493533 511812 566649 587636 632772 658044 755532 767718 881454 987066 1133298 1151577 1322181 1535436 1699947 1762908 1974132 2266596 2303154 2644362 3399894 3454731 3966543 4606308 5099841 5288724 6799788 6909462 7933086 10199682 11899629 13818924 15299523 15866172 20399364 23799258 30599046 35698887 47598516 61198092 71397774 107096661 142795548 214193322 428386644
• Sum of all divisors σ(n): 1327968768
• Sum of proper divisors (its aliquot sum) s(n): 899582124
• 428386644 is an abundant number, because the sum of its proper divisors (899582124) is greater than itself. Its abundance is 471195480

Bases of 428386644

• Binary: 11001100010001010100101010100₂
• Hexadecimal: 0x1988A954
• Base-36: 731T90

Squares and roots of 428386644

• 428386644 squared (428386644²) is 183515116757582736
• 428386644 cubed (428386644³) is 78615424991049029827377984
• The square root of 428386644 is 20697.5033276963
• The cube root of 428386644 is 753.8390672203

Scales and comparisons

• 428,386,644 seconds is equal to 13 years, 32 weeks, 2 days, 4 hours, 17 minutes, 24 seconds.
• To count from 1 to 428,386,644 would take you about twenty 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 428386644 cubic inches would be around 62.8 feet tall.

Recreational maths with 428386644

• 428386644 backwards is 446683824
• The number of decimal digits it has is: 9
• The sum of 428386644's digits is 45
• More coming soon!