1998022788

Names of 1998022788

• Cardinal: 1998022788 can be written as One billion, nine hundred ninety-eight million, twenty-two thousand, seven hundred eighty-eight.

Scientific notation

• Scientific notation: 1.998022788 × 10⁹

Factors of 1998022788

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 59

Divisors of 1998022788

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 9 12 18 23 27 31 36 46 54 62 69 81 92 93 108 124 138 162 186 207 243 276 279 324 372 414 486 558 621 713 729 828 837 961 972 1116 1242 1426 1458 1674 1863 1922 2139 2484 2511 2852 2883 2916 3348 3726 3844 4278 5022 5589 5766 6417 7452 7533 8556 8649 10044 11178 11532 12834 15066 16767 17298 19251 22103 22356 22599 25668 25947 29791 30132 33534 34596 38502 44206 45198 51894 57753 59582 66309 67068 77004 77841 88412 89373 90396 103788 115506 119164 132618 155682 173259 178746 198927 231012 233523 265236 268119 311364 346518 357492 397854 467046 519777 536238 596781 685193 693036 700569 795708 804357 934092 1039554 1072476 1193562 1370386 1401138 1608714 1790343 2055579 2079108 2387124 2413071 2740772 2802276 3217428 3580686 4111158 4826142 5371029 6166737 7161372 7239213 8222316 9652284 10742058 12333474 14478426 16113087 18500211 21484116 21717639 24666948 28956852 32226174 37000422 43435278 55500633 64452348 74000844 86870556 111001266 166501899 222002532 333003798 499505697 666007596 999011394 1998022788
• Sum of all divisors σ(n): 5652681216
• Sum of proper divisors (its aliquot sum) s(n): 3654658428
• 1998022788 is an abundant number, because the sum of its proper divisors (3654658428) is greater than itself. Its abundance is 1656635640

Bases of 1998022788

• Binary: 1110111000101110110100010000100₂
• Hexadecimal: 0x77176884
• Base-36: X1KK90

Squares and roots of 1998022788

• 1998022788 squared (1998022788²) is 3992095061367292944
• 1998022788 cubed (1998022788³) is 7976296904474109739983607872
• The square root of 1998022788 is 44699.2481815969
• The cube root of 1998022788 is 1259.5057244973

Scales and comparisons

• 1,998,022,788 seconds is equal to 63 years, 27 weeks, 4 days, 6 hours, 19 minutes, 48 seconds.
• To count from 1 to 1,998,022,788 would take you about one hundred twenty-seven 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 1998022788 cubic inches would be around 105 feet tall.

Recreational maths with 1998022788

• 1998022788 backwards is 8872208991
• 1998022788 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1998022788's digits is 54
• More coming soon!