Properties of the Number 69008

Sixty-Nine Thousand Eight

Basics

Value: 69007 → 69008 → 69009

Parity: even

Prime: No

Previous Prime: 69001

Next Prime: 69011

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ⁴ × 19 × 227

Divisors: 1, 2, 4, 8, 16, 19, 38, 76, 152, 227

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000110110010000

Octal: 206620

Duodecimal: 33B28

Hexadecimal: 10d90

Square: 4762104064

Square Root: 262.6937380296683

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

Expansion of e.g.f. 1/2 - (1/2)*(1+4·log(1-x))^1/2. A52851

Numbers n such that every digit of n and n-th prime contains a loop (only digits 0,4,6,8,9 in n and n-th prime). A107624

Denominators of continued fraction convergents to sqrt(346). A41655

Octagonal numbers which are the sums of exactly two positive octagonal numbers. A136346

Number of (n+1)X(7+1) 0..1 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically. A253697

Triangular sequence from coefficients of characteristic polynomial of n X n prime element matrices: M=A.B.A^-1; (A(3) is singular): examples; A(4)= {{2, 3, 5, 7, 11}, {3, 5, 7, 11, 13}, {5, 7, 11, 13, 17}, {7, 11, 13, 17, 19}, {11, 13, 17, 19, 23}} B(4)= {{3, 5, 7, 11, 13}, {5, 7, 11, 13, 17}, {7, 11, 13, 17, 19}, {11, 13, 17, 19, 23}, {13, 17, 19, 23, 29}}. A137405

Let M denote the 6 X 6 matrix with rows /1,1,1,1,1,1/1,1,1,1,1,0/1,1,1,1,0,0/1,1,1,0,0,0/1,1,0,0,0,0/1,0,0,0,0,0/ and A(n) the vector (x(n),y(n),z(n),t(n),u(n),v(n)) = Mⁿ*A where A is the vector (1,1,1,1,1,1); then a(n) = z(n). A69008