Properties of the Number 57146

Fifty-Seven Thousand One Hundred Forty-Six

Basics

Value: 57145 → 57146 → 57147

Parity: even

Prime: No

Previous Prime: 57143

Next Prime: 57149

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 28573

Divisors: 1, 2, 28573, 57146

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101111100111010

Octal: 157472

Duodecimal: 290A2

Hexadecimal: df3a

Square: 3265665316

Square Root: 239.0522955338434

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 indicating 2X2 subblocks of some larger (n+1)X(k+1) binary array having a sum of two or less, with rows and columns of the latter in lexicographically nondecreasing order. A227263

Number of unlabeled asymmetric 2-ary cacti having n polygons. A54358

(c(p)-2)/p where p runs through the primes and where c(p) denotes the p-th Catalan number = binomial(2·p,p)/(p+1). A82179

Number of n X 4 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 5 binary array having a sum of two or less, with rows and columns of the latter in lexicographically nondecreasing order. A227261

The sequence 2, floor(a), floor(a²), floor(a³), ..., with a = 1+sqrt(5). A57146