Properties of the Number 64189

Sixty-Four Thousand One Hundred Eighty-Nine

Basics

Value: 64188 → 64189 → 64190

Parity: odd

Prime: Yes

Previous Prime: 64187

Next Prime: 64217

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 64189

Divisors: 1, 64189

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111101010111101

Octal: 175275

Duodecimal: 31191

Hexadecimal: fabd

Square: 4120227721

Square Root: 253.3554814879678

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

T(n,k)=Number of nXk 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 4 1s. A295531

Expansion of ∑_k>=0 x^k / (1 - (k·x)³)^k+1. A360788

Number of nX4 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 4 1s. A295527

Number of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 4 1s. A295528

Primes containing nonprime digits (from 1 to 9) in their decimal expansion and whose digits are distinct, i.e., consisting of only digits 1, 4, 6, 8, 9. A323391

Primes p such that there exist primes p'<p"<p"'<p""<p such that the concatenation of any two among the {p,...,p""} is prime. A139005

Triangle T(n,k), 0 <= k <= n, read by rows, defined by: T(0,0)=1, T(n,k)=0 if n < k, T(n,k) = T(n-1,k-1) + T(n-1,k) + T(n-1,k+1). A64189