Properties of the Number 17948

Seventeen Thousand Nine Hundred Forty-Eight

Basics

Value: 17947 → 17948 → 17949

Parity: even

Prime: No

Previous Prime: 17939

Next Prime: 17957

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 7 × 641

Divisors: 1, 2, 4, 7, 14, 28, 641, 1282, 2564, 4487

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011000011100

Octal: 43034

Duodecimal: A478

Hexadecimal: 461c

Square: 322130704

Square Root: 133.9701459281134

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 double-free integer partitions of n. A323092

a(n) = prime(n)*prime(n-1) + 1. A23523

Numbers n such that uphi(n) = uphi(n+1), where uphi(n) is the unitary totient function (A047994). A287055

Numbers k such that A206369(k) = A206369(k + 1). A206368

Numbers k such that iphi(k) = iphi(k+1), where iphi(k) is an infinitary analog to the Euler totient function (A091732). A326403

a(n) is the number of integer partitions of n for which the greatest part minus the least part is equal to the index of the seaweed algebra formed by the integer partition paired with its weight. A318176

Number of maximal irredundant and minimal dominating sets in the n X n rook complement graph. A291623

First differences of A349295. A349296

Numbers k such that (k!)² + prime(k) is prime. A64769

Number of right triangles on a (n+1)X9 grid. A189813