Properties of the Number 30953

Thirty Thousand Nine Hundred Fifty-Three

Basics

Value: 30952 → 30953 → 30954

Parity: odd

Prime: No

Previous Prime: 30949

Next Prime: 30971

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 13 × 2381

Divisors: 1, 13, 2381, 30953

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100011101001

Octal: 74351

Duodecimal: 15AB5

Hexadecimal: 78e9

Square: 958088209

Square Root: 175.93464695732902

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 embeddings on the sphere of 2-connected planar graphs, minimum vertex degree 3, with n nodes. A187927

x-value of the smallest solution to 2·x² - p·y² = (-1)^(p+1/4), p = A002145(n). A306618

Number of nX3 0..1 arrays with every element unequal to 0, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero. A316118

Triangle, read by rows, where T(n,k) = ∑_j=0..n-k-1 C(j+k,j)*T(n-1,j+k) for n>k>=0 with T(n,n)=1. A101494

G.f. A(x) satisfies: [xⁿ] A(x) * (1+x)^n*(n-1/2) = [xⁿ] (1+x)^n*(n+1/2) for n >= 0. A304403

[ exp(7/9)*n! ]. A30953