Properties of the Number 47491

Forty-Seven Thousand Four Hundred Ninety-One

Basics

Value: 47490 → 47491 → 47492

Parity: odd

Prime: Yes

Previous Prime: 47459

Next Prime: 47497

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 47491

Divisors: 1, 47491

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1011100110000011

Octal: 134603

Duodecimal: 23597

Hexadecimal: b983

Square: 2255395081

Square Root: 217.92429878285716

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 every element equal to 1, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A303410

a(n) = T(2·n+1, n), array T as in A047080. A47086

Primes p such that 42·p-1, 42·p+1 and 48·p-1, 48·p+1 are twin primes. A138697

Numbers p of primitive Pythagorean triangles such that perimeters and products of 3 sides are Averages of twin prime pairs, q=p+1, a=q²-p², c=q²+p², b=2·p*q, ar=a·b/2; s=a+b+c, s-+1 are primes, pr=a·b*c, pr-+1 are primes. A155178

Primes p such that the differences between the 5 consecutive primes starting with p are (6,4,6,6). A78964

Prime numbers p such that p +- ((p-1)/5) are primes. A137714

Number of planar partitions of n where parts decrease by at most 1 along each row and column. A392511

Number of symmetric bargraphs having semiperimeter n (n>=2). A273905

Number of nX3 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A303406

Greatest prime dividing 2ⁿ + n. A359685