Properties of the Number 44421

Forty-Four Thousand Four Hundred Twenty-One

Basics

Value: 44420 → 44421 → 44422

Parity: odd

Prime: No

Previous Prime: 44417

Next Prime: 44449

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 13 × 17 × 67

Divisors: 1, 3, 13, 17, 39, 51, 67, 201, 221, 663

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1010110110000101

Octal: 126605

Duodecimal: 21859

Hexadecimal: ad85

Square: 1973225241

Square Root: 210.76289996107

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

Replacing each digit d in decimal expansion of n with d² yields a prime at each step when done recursively three times. A316604

[ n(n-1)(n-2)(n-3)/17 ]. A11927

Number of length 4+1 0..n arrays with the sum of the squares of adjacent differences multiplied by some arrangement of +-1 equal to zero. A250279

Indices n of primes p(n), p(n+3) such that p(n)+1 and p(n+3)+1 have the same largest prime factor. A105406

Number of partitions p of n such that the sequence of level steps (when interpreted as ascents) and descents of p forms a Dyck path. A304777

The smallest number k > 1 such that the total number of distinct prime factors of the digital reversal of k, when written in all bases b, where 2 <= b <= n, equals b. A392678

Numbers n such that string 8,9 occurs in the base 10 representation of n but not of n-1. A44421