Properties of the Number 48945

Forty-Eight Thousand Nine Hundred Forty-Five

Basics

Value: 48944 → 48945 → 48946

Parity: odd

Prime: No

Previous Prime: 48907

Next Prime: 48947

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 13 × 251

Divisors: 1, 3, 5, 13, 15, 39, 65, 195, 251, 753

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011111100110001

Octal: 137461

Duodecimal: 243A9

Hexadecimal: bf31

Square: 2395613025

Square Root: 221.23516899444357

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)=a(n-1)+a(m), where m=2n-2-2^p+1 and 2^p<n-1<=2^p+1, for n >= 4. A50067

Number of maximal sum-free subsets of {1,2,...,n}. A121269

Number of regions in a polygon whose boundary consists of n+2 equally spaced points around a semicircle and n+2 equally spaced points along the diameter (a total of 2n+2 points). See Comments for precise definition. A333519

Sum over the products of factorials of parts in all partitions of n where the sum runs over the number of different parts only. A107894

Numbers k such that x^k + x⁷ + 1 is irreducible over GF(2). A57477

Numbers k>7 such that x^k + x⁷ + x⁶ + x⁵ + x⁴ + x³ + x² + x + 1 is irreducible over GF(2). A57485

Number of Integer solutions to w² + x² + y² + z² < n²; number of lattice points inside a 4-sphere of radius n. A319617

Numbers whose product of divisors is a fourth power. A48945