Properties of the Number 30749

Thirty Thousand Seven Hundred Forty-Nine

Basics

Value: 30748 → 30749 → 30750

Parity: odd

Prime: No

Previous Prime: 30727

Next Prime: 30757

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 97 × 317

Divisors: 1, 97, 317, 30749

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111100000011101

Octal: 74035

Duodecimal: 15965

Hexadecimal: 781d

Square: 945501001

Square Root: 175.35392781457733

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Number of compositions (ordered partitions) of n into prime parts that do not divide n. A300703

Number of partitions of n in which the number of parts is relatively prime to n. A102628

Number of walks within N² (the first quadrant of Z²) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, -1), (-1, 1), (0, -1), (1, -1), (1, 0), (1, 1)}. A151480

Starting from k=7, each subsequent term is the next larger k such that the ratio A276086(k)/A003415(k) is nearer to 1 than for the previous k in the sequence. A371104

Number of new terms at stage n in the formation of A030747; likewise at stage n in the formation of A030787. A30749

Number of (n+2)X(1+2) 0..3 arrays with every 3X3 subblock row and column sum not equal to 0 1 3 6 or 7 and every 3X3 diagonal and antidiagonal sum equal to 0 1 3 6 or 7. A252150