Properties of the Number 30874

Thirty Thousand Eight Hundred Seventy-Four

Basics

Value: 30873 → 30874 → 30875

Parity: even

Prime: No

Previous Prime: 30871

Next Prime: 30881

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 43 × 359

Divisors: 1, 2, 43, 86, 359, 718, 15437, 30874

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111100010011010

Octal: 74232

Duodecimal: 15A4A

Hexadecimal: 789a

Square: 953203876

Square Root: 175.7099883330484

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

T(n,k)=Number of nXk 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A280161

Least integers that satisfy sum(n>0,1/a(n)^z)=0, where a(1)=1, a(n+1)>a(n) and z=I. A84813

Number of walks within N² (the first quadrant of Z²) starting at (0,0), ending on the vertical axis and consisting of 2 n steps taken from {(-1, -1), (-1, 1), (1, 0), (1, 1)}. A151393

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 549", based on the 5-celled von Neumann neighborhood. A272844

Number of nX4 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A280157

Number of nX7 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A280160

Square array A(m,n) = number whose binary expansion is the concatenation of those of { m, m+1, ..., m+n }, with m, n >= 1, read by falling antidiagonals. A285806

Number of ways to place 6 nonattacking bishops on a 6 X n board. A172211

[ exp(4/19)*n! ]. A30874