Properties of the Number 47290

Forty-Seven Thousand Two Hundred Ninety

Basics

Value: 47289 → 47290 → 47291

Parity: even

Prime: No

Previous Prime: 47287

Next Prime: 47293

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 5 × 4729

Divisors: 1, 2, 5, 10, 4729, 9458, 23645, 47290

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1011100010111010

Octal: 134272

Duodecimal: 2344A

Hexadecimal: b8ba

Square: 2236344100

Square Root: 217.46264046957583

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

Irregular triangle read by rows: T(n,k) = ∑_i=0..k (-1)ⁱ * binomial(2·n+1,i) * binomial(k+2-i,2)ⁿ, 0 <= k <= 2*(n-1). A154283

Number of permutations of 2 indistinguishable copies of 1..n with exactly 4 adjacent element pairs in decreasing order. A151626

Beach-Williams Pell numbers of type 2pq (p,q primes). A212075

a(n) = ∑_i=1..n binomial(i+1,2)⁵. A85440

a(n) = binomial(n+1, 2)⁵. A59860

Numbers that are congruent to {1, 4, 6} mod 7. A47290

a(n) is the numerator of the probability that there is a survivor in "group Russian roulette" starting with n people. A372486

Numbers in which 0,1,2,3,4,5 all occur in base 6. A31947

a(n) = (n*(n+1))⁵. A248720