1428878451

Names of 1428878451

• Cardinal: 1428878451 can be written as One billion, four hundred twenty-eight million, eight hundred seventy-eight thousand, four hundred fifty-one.

Scientific notation

• Scientific notation: 1.428878451 × 10⁹

Factors of 1428878451

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 449

Divisors of 1428878451

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 7 11 13 19 21 33 39 57 77 79 91 133 143 209 231 237 247 273 317 399 429 553 627 741 869 951 1001 1027 1463 1501 1659 1729 2219 2607 2717 3003 3081 3487 4121 4389 4503 5187 6023 6083 6657 7189 8151 10461 10507 11297 12363 16511 18069 18249 19019 19513 21567 24409 25043 28847 31521 33891 42161 45331 49533 57057 58539 66253 73227 75129 78299 79079 86541 115577 126483 135993 136591 175301 198759 214643 234897 237237 275473 317317 325559 346731 409773 463771 475817 525903 548093 643929 826419 861289 951951 976677 1391313 1427451 1502501 1644279 1928311 2278913 2583867 3330719 3581149 4507503 5233987 5784933 6029023 6185621 6836739 9992157 10743447 15701961 18087069 18556863 25068043 36637909 43299347 68041831 75204129 109913727 129898041 204125493 476292817 1428878451
• Sum of all divisors σ(n): 2735308800
• Sum of proper divisors (its aliquot sum) s(n): 1306430349
• 1428878451 is a deficient number, because the sum of its proper divisors (1306430349) is less than itself. Its deficiency is 122448102

Bases of 1428878451

• Binary: 1010101001010101111010001110011₂
• Hexadecimal: 0x552AF473
• Base-36: NMPTO3

Squares and roots of 1428878451

• 1428878451 squared (1428878451²) is 2041693627732159401
• 1428878451 cubed (1428878451³) is 2917332028210498567785967851
• The square root of 1428878451 is 37800.5086076893
• The cube root of 1428878451 is 1126.3285574481

Scales and comparisons

• 1,428,878,451 seconds is equal to 45 years, 22 weeks, 3 days, 22 hours, 40 minutes, 51 seconds.
• To count from 1 to 1,428,878,451 would take you about ninety 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 1428878451 cubic inches would be around 93.9 feet tall.

Recreational maths with 1428878451

• 1428878451 backwards is 1548788241
• The number of decimal digits it has is: 10
• The sum of 1428878451's digits is 48
• More coming soon!