Properties of the Number 11948

Eleven Thousand Nine Hundred Forty-Eight

Basics

Value: 11947 → 11948 → 11949

Parity: even

Prime: No

Previous Prime: 11941

Next Prime: 11953

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 29 × 103

Divisors: 1, 2, 4, 29, 58, 103, 116, 206, 412, 2987

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10111010101100

Octal: 27254

Duodecimal: 6AB8

Hexadecimal: 2eac

Square: 142754704

Square Root: 109.30690737551767

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

a(n) = ∑_{k=0..floor(n/4)} C(n-3·k,k+1). A98578

T(n,k)=Number of nXk 0..2 arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two exactly once. A268798

a(n) is the rational part of A(n) = (6-sqrt(7))*A(n-1) - (12-4·sqrt(7))*A(n-2) + (8-3·sqrt(7))*A(n-3) with A(0)=3, A(1)=6-sqrt(7), A(2)=19-4·sqrt(7). A215817

Number of 2 X 2 matrices having all elements in {-n,...n} and determinant 4. A209988

Exponents k where A000120(3^k) - A070939(3^k)/2 reaches a new minimum. A372097

Numerators of continued fraction convergents to sqrt(649). A42246

a(n) has exactly (a(n) - n) / 2 partitions with exactly (a(n) - n) / 2 prime parts. A299732

Row sums of number triangle A114278. A114279

a(n) = gcd(a(n-1),n-1)*a(n-1) + d(n-1) if a(n-1) is not divisible by 2, otherwise a(n) = a(n-1)/2, where gcd denotes common divisor, d(n) is number of divisors of n. A133904

Number of (n+2) X (4+2) 0..1 arrays with no 3 X 3 subblock diagonal sum 0 and no antidiagonal sum 3 and no row sum 0 or 3 and no column sum 0 or 3. A258962