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Properties of the Number 9944

Nine Thousand Nine Hundred Forty-Four

Basics

Value: 9943 → 9944 → 9945

Parity: even

Prime: No

Previous Prime: 9941

Next Prime: 9949

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 3 × 11 × 113

Divisors: 1, 2, 4, 8, 11, 22, 44, 88, 113, 226

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10011011011000

Octal: 23330

Duodecimal: 5908

Hexadecimal: 26d8

Square: 98883136

Square Root: 99.71960689854328

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

Triangle read by rows: T(n,m) (n >= m >= 1) = number of chambers (or regions) formed by drawing the line segments connecting any two of the (n+1) X (m+1) lattice points in an n X m lattice polygon. A288187
Number of regions in a "frame" of size n X n (see Comments for definition). A331776
T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having directed index change 0,1 0,-2 1,0 or -1,0. A264299
Triangle read by rows: T(n,k) = number of regions in a "frame" of size n X k (see Comments for definition). A331457
5-almost primes with semiprime digits (digits 4, 6, 9 only). A111697
Number of tangled chains of length k=3. A258486
Triangle read by rows: T(n,k) is the number of secondary structures of size n having k stacks of length 2 (n>=0, k>=0). A202841
Consider a non-palindromic number of k digits n = dk*10k-1 + dk-1*10k-2 + … + d2*10 + d1. Sequence lists the numbers n such that ∑i=1..k-1{φ(∑j=1..i{dj*10j-1})} = ∑i=1..k-1{φ(∑j=1..i{dk-j+1*10i-j})} (see example below). A241503
Numbers n such that the sum of largest prime factors of numbers from 1 to n is divisible by n. A88825
The third left hand column of triangle A167565. A167566