1231231428

Names of 1231231428

• Cardinal: 1231231428 can be written as One billion, two hundred thirty-one million, two hundred thirty-one thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 1.231231428 × 10⁹

Factors of 1231231428

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1243

Divisors of 1231231428

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 49 54 63 81 84 98 108 126 147 162 189 196 243 252 294 324 343 378 441 486 567 588 686 729 756 882 972 1029 1134 1231 1323 1372 1458 1701 1764 2058 2268 2462 2646 2916 3087 3402 3693 3969 4116 4924 5103 5292 6174 6804 7386 7938 8617 9261 10206 11079 11907 12348 14772 15876 17234 18522 20412 22158 23814 25851 27783 33237 34468 35721 37044 44316 47628 51702 55566 60319 66474 71442 77553 83349 99711 103404 111132 120638 132948 142884 155106 166698 180957 199422 232659 241276 250047 299133 310212 333396 361914 398844 422233 465318 500094 542871 598266 697977 723828 844466 897399 930636 1000188 1085742 1196532 1266699 1395954 1628613 1688932 1794798 2093931 2171484 2533398 2791908 3257226 3589596 3800097 4187862 4885839 5066796 6281793 6514452 7600194 8375724 9771678 11400291 12563586 14657517 15200388 19543356 22800582 25127172 29315034 34200873 43972551 45601164 58630068 68401746 87945102 102602619 136803492 175890204 205205238 307807857 410410476 615615714 1231231428
• Sum of all divisors σ(n): 3770412800
• Sum of proper divisors (its aliquot sum) s(n): 2539181372
• 1231231428 is an abundant number, because the sum of its proper divisors (2539181372) is greater than itself. Its abundance is 1307949944

Bases of 1231231428

• Binary: 1001001011000110001100111000100₂
• Hexadecimal: 0x496319C4
• Base-36: KD1K90

Squares and roots of 1231231428

• 1231231428 squared (1231231428²) is 1515930829294919184
• 1231231428 cubed (1231231428³) is 1866461679702007580060914752
• The square root of 1231231428 is 35088.9074780053
• The cube root of 1231231428 is 1071.7987121603

Scales and comparisons

• 1,231,231,428 seconds is equal to 39 years, 7 weeks, 5 days, 8 hours, 43 minutes, 48 seconds.
• To count from 1 to 1,231,231,428 would take you about seventy-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 1231231428 cubic inches would be around 89.3 feet tall.

Recreational maths with 1231231428

• 1231231428 backwards is 8241321321
• 1231231428 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1231231428's digits is 27
• More coming soon!