Properties of the Number 7148

Seven Thousand One Hundred Forty-Eight

Basics

Value: 7147 → 7148 → 7149

Parity: even

Prime: No

Previous Prime: 7129

Next Prime: 7151

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 1787

Divisors: 1, 2, 4, 1787, 3574, 7148

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1101111101100

Octal: 15754

Duodecimal: 4178

Hexadecimal: 1bec

Square: 51093904

Square Root: 84.545845551393

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

Integers that need 7 iterations of the map x->A352172(x) to reach 1. A352265

T(n,k)=Number of nXk 0..1 arrays with rows and columns lexicographically nondecreasing and the instance counts of every value within one of each other. A201384

a(n) = ceiling(nⁿ/n!). A73225

Smallest number k such that exactly half the numbers in [1..k] are prime(n)-smooth. A290154

Number of 2-trees rooted at any symmetric edge. A63687

Number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 217", based on the 5-celled von Neumann neighborhood. A270909

T(n,m) is the numerator of the resistance between two diametrically opposite nodes of a rectangular electric network of n·m quadratic cells in which all edges are replaced by one-ohm resistors, where T(n,m) is a triangle read by rows. A357113

Number of defective (binary) heaps on n elements from the set {0,1} where exactly one ancestor-successor pair does not have the correct order. A372643

Positions where records occur in A072340. A85285

Limiting reverse row of the array A274196. A274201