Properties of the Number 66950

Sixty-Six Thousand Nine Hundred Fifty

Basics

Value: 66949 → 66950 → 66951

Parity: even

Prime: No

Previous Prime: 66949

Next Prime: 66959

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 5 ² × 13 × 103

Divisors: 1, 2, 5, 10, 13, 25, 26, 50, 65, 103

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000010110000110

Octal: 202606

Duodecimal: 328B2

Hexadecimal: 10586

Square: 4482302500

Square Root: 258.74698065871223

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

Integers that are Rhonda numbers to base 15. A100974

Number of distinct residues of xⁿ (mod n⁵), x=0..n⁵-1. A365102

Numbers k such that 5·2^k - 3 is prime. A58588

Number of (w,x,y,z) with all terms in {1,...,n} and w >= |x-y| + |y-z|. A212675

Number of (n+1)X(5+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally, with no adjacent elements equal. A232586

Number of (6+1)X(n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally, with no adjacent elements equal. A232595

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally, with no adjacent elements equal. A232589

Numbers k such that φ(σ(k)) + σ(φ(k)) = 2k. A66950