Properties of the Number 5145

Five Thousand One Hundred Forty-Five

Basics

Value: 5144 → 5145 → 5146

Parity: odd

Prime: No

Previous Prime: 5119

Next Prime: 5147

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 7 ³

Divisors: 1, 3, 5, 7, 15, 21, 35, 49, 105, 147

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010000011001

Octal: 12031

Duodecimal: 2B89

Hexadecimal: 1419

Square: 26471025

Square Root: 71.72865536171719

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

Numbers that are the sum of 11 positive 7th powers. A3378

Numbers m such that there are precisely 19 groups of order m. A298910

(1/2)*number of regular tetrahedra that can be formed using the points in an (n+1) X (n+1) X (n+1) lattice cube. A103158

Numbers whose k-th arithmetic derivative is zero for some k>0, ordered by their position in A276086. A351255

Numbers k for which nontrivial positive magic squares of exactly 8 different orders with magic sum k exist. For a definition of nontrivial positive magic squares, see A125005. A125015

Numbers with exactly 3 distinct odd prime divisors {3,5,7}. A147576

Revenant numbers: numbers k such that k multiplied by the product of all its digits contains k as a substring. A328095

Expansion of ∏_k>=1 (1 + x^2·k-1)^k. A263140

a(n) = A276086(σ(n)), where A276086 is the primorial base exp-function, and σ is the sum of divisors function. A388031

Number of rooted labeled triangular cacti with 2n+1 nodes (n triangles). A34940