Properties of the Number 69945

Sixty-Nine Thousand Nine Hundred Forty-Five

Basics

Value: 69944 → 69945 → 69946

Parity: odd

Prime: No

Previous Prime: 69941

Next Prime: 69959

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 4663

Divisors: 1, 3, 5, 15, 4663, 13989, 23315, 69945

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001000100111001

Octal: 210471

Duodecimal: 34589

Hexadecimal: 11139

Square: 4892303025

Square Root: 264.4711704515258

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

Terms of Binary Gleichniszahlen-Reihe (BGR) sequence A045998 converted into decimal (Look and Say Sequence, mod 2, read in binary and converted to decimal). A48522

Numbers whose base-4 representation has exactly 9 runs. A43600

Numbers k such that number of runs in the base 4 representation of k is congruent to 0 mod 9. A43858

Numbers k such that number of runs in the base 4 representation of k is congruent to 9 mod 10. A43876

Pisot sequences L(6,15), S(6,15). A277089

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, -1), (0, 1, -1), (1, 0, 0), (1, 0, 1)}. A150111

Let M_k be the k X k matrix M_k(i,j)=1/binomial(i+n,j); then a(n)=1/det(M_n+1). A69945