30402072

Names of 30402072

• Cardinal: 30402072 can be written as Thirty million, four hundred two thousand and seventy-two.

Scientific notation

• Scientific notation: 3.0402072 × 10⁷

Factors of 30402072

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 346

Divisors of 30402072

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 31 36 53 62 72 93 106 124 159 186 212 248 257 279 318 372 424 477 514 558 636 744 771 954 1028 1116 1272 1542 1643 1908 2056 2232 2313 3084 3286 3816 4626 4929 6168 6572 7967 9252 9858 13144 13621 14787 15934 18504 19716 23901 27242 29574 31868 39432 40863 47802 54484 59148 63736 71703 81726 95604 108968 118296 122589 143406 163452 191208 245178 286812 326904 422251 490356 573624 844502 980712 1266753 1689004 2533506 3378008 3800259 5067012 7600518 10134024 15201036 30402072
• Sum of all divisors σ(n): 86935680
• Sum of proper divisors (its aliquot sum) s(n): 56533608
• 30402072 is an abundant number, because the sum of its proper divisors (56533608) is greater than itself. Its abundance is 26131536

Bases of 30402072

• Binary: 1110011111110011000011000₂
• Hexadecimal: 0x1CFE618
• Base-36: I3ME0

Squares and roots of 30402072

• 30402072 squared (30402072²) is 924285981893184
• 30402072 cubed (30402072³) is 28100208970107276277248
• The square root of 30402072 is 5513.8073959833
• The cube root of 30402072 is 312.1052406315

Scales and comparisons

• 30,402,072 seconds is equal to 50 weeks, 1 day, 21 hours, 1 minute, 12 seconds.
• To count from 1 to 30,402,072 would take you about twenty-three weeks!

  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 30402072 cubic inches would be around 26 feet tall.

Recreational maths with 30402072

• 30402072 backwards is 27020403
• 30402072 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30402072's digits is 18
• More coming soon!