Properties of the Number 47121

Forty-Seven Thousand One Hundred Twenty-One

Basics

Value: 47120 → 47121 → 47122

Parity: odd

Prime: No

Previous Prime: 47119

Next Prime: 47123

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 113 × 139

Divisors: 1, 3, 113, 139, 339, 417, 15707, 47121

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011100000010001

Octal: 134021

Duodecimal: 23329

Hexadecimal: b811

Square: 2220388641

Square Root: 217.07372019661892

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 compositions of n into distinct parts with exactly four descents. A241723

a(0) = 1; a(n) = ∑_{k=1 to d(n)} [a(n-k)] where d(n) is number of positive divisors of n. A55873

Sum{T(i,n-i): i=0,1,...,n}, array T as in A047120. A47121