Properties of the Number 44121

Forty-Four Thousand One Hundred Twenty-One

Basics

Value: 44120 → 44121 → 44122

Parity: odd

Prime: No

Previous Prime: 44119

Next Prime: 44123

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 11 × 191

Divisors: 1, 3, 7, 11, 21, 33, 77, 191, 231, 573

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010110001011001

Octal: 126131

Duodecimal: 21649

Hexadecimal: ac59

Square: 1946662641

Square Root: 210.04999404903586

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

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically. A207858

Number A(n,k) of singular vector tuples for a general k-dimensional {n}^k tensor; square array A(n,k), n>=1, k>=1, read by antidiagonals. A284308

a(n) = concatenation of n² and n. A55436

a(n) = 100·n² + n. A55438

Odd numbers with exactly 4 distinct palindromic prime factors. A46406

Number of n-tuples of singular vectors of a 3 X 3 X 3 X ... X 3 n-dimensional tensor. A274308

Number of singular vector tuples for a general 5-dimensional n X n X n X n X n tensor. A283829

A(n,k) = ∑_i₁=0..n ∑_i₂=0..n ... ∑_{i_k=0..n} (-1)^{i₁ + i₂ + ... + i_k} * multinomial(i₁ + i₂ + ... + i_k; i₁, i₂, ..., i_k), square array A(n,k) read by antidiagonals, for n >= 0, k >= 0. A308322

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 20. A31698

a(n) = 441·n² + 21. A158603