30513420

Names of 30513420

• Cardinal: 30513420 can be written as Thirty million, five hundred thirteen thousand, four hundred twenty.

Scientific notation

• Scientific notation: 3.051342 × 10⁷

Factors of 30513420

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 475

Divisors of 30513420

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 61 63 70 84 90 105 122 126 140 180 183 210 244 252 305 315 366 397 420 427 549 610 630 732 794 854 915 1098 1191 1220 1260 1281 1588 1708 1830 1985 2135 2196 2382 2562 2745 2779 3573 3660 3843 3970 4270 4764 5124 5490 5558 5955 6405 7146 7686 7940 8337 8540 10980 11116 11910 12810 13895 14292 15372 16674 17865 19215 23820 24217 25011 25620 27790 33348 35730 38430 41685 48434 50022 55580 71460 72651 76860 83370 96868 100044 121085 125055 145302 166740 169519 217953 242170 250110 290604 339038 363255 435906 484340 500220 508557 678076 726510 847595 871812 1017114 1089765 1453020 1525671 1695190 2034228 2179530 2542785 3051342 3390380 4359060 5085570 6102684 7628355 10171140 15256710 30513420
• Sum of all divisors σ(n): 107784768
• Sum of proper divisors (its aliquot sum) s(n): 77271348
• 30513420 is an abundant number, because the sum of its proper divisors (77271348) is greater than itself. Its abundance is 46757928

Bases of 30513420

• Binary: 1110100011001100100001100₂
• Hexadecimal: 0x1D1990C
• Base-36: I60B0

Squares and roots of 30513420

• 30513420 squared (30513420²) is 931068800096400
• 30513420 cubed (30513420³) is 28410093346237493688000
• The square root of 30513420 is 5523.8953646861
• The cube root of 30513420 is 312.4858062887

Scales and comparisons

• 30,513,420 seconds is equal to 50 weeks, 3 days, 3 hours, 57 minutes.
• To count from 1 to 30,513,420 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 30513420 cubic inches would be around 26 feet tall.

Recreational maths with 30513420

• 30513420 backwards is 02431503
• 30513420 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30513420's digits is 18
• More coming soon!