Properties of the Number 27450

Twenty-Seven Thousand Four Hundred Fifty

Basics

Value: 27449 → 27450 → 27451

Parity: even

Prime: No

Previous Prime: 27449

Next Prime: 27457

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 ² × 61

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 25

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110101100111010

Octal: 65472

Duodecimal: 13A76

Hexadecimal: 6b3a

Square: 753502500

Square Root: 165.6804152578089

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 positive solutions to (x₁)² + (x₂)² + ... + (x₅)² <= n². A341424

Triangle read by rows: T(n,k) is the number of deco polyominoes of height n and having k columns ending at an even level (1<=k<=n). A deco polyomino is a directed column-convex polyomino in which the height, measured along the diagonal, is attained only in the last column. A121698

a(n) = 108·n² - 228·n + 114 (n>=2). A304618

Triangle read by rows: T(n,k) = A(k,n-k), 1 <= k < n, 2 <= n, where A(m,n) is the number of distinct strings consisting of one X, m+n-1 Y's and m+n-1 Z's in which the X lies to the right of at least m Y's and at least m Z's. A351585

Number of squares in an n X n grid of squares with diagonals. A111500

Let s denote the sum of the abundant numbers in the aliquot parts of x. Sequence lists numbers·such that σ(s) = usigma(x), where usigma(x) is the sum of the unitary divisors of x (A034448). A258135

Triangular array: T(n,1)=T(n,n)=n, for 1<k<n: T(n,k) = concatenation of T(n-1,k-1) and T(n-1,k) in binary representation. A79661

Primitive terms of A108569. A346277

Third diagonal of A027446. A27450