Properties of the Number 51145

Fifty-One Thousand One Hundred Forty-Five

Basics

Value: 51144 → 51145 → 51146

Parity: odd

Prime: No

Previous Prime: 51137

Next Prime: 51151

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 5 × 53 × 193

Divisors: 1, 5, 53, 193, 265, 965, 10229, 51145

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1100011111001001

Octal: 143711

Duodecimal: 25721

Hexadecimal: c7c9

Square: 2615811025

Square Root: 226.15260334561705

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

Positive integers m such that π(k³) + π(m³) is a cube for some k = 1,...,m, where π(x) denotes the number of primes not exceeding x. A262698

Satisfies a(n)/A079159(n) = p_n, the n-th prime (n>0), a(0)=1. A79161

Number of 2 X 2 matrices having all terms in {1,...,n} and determinant = 0 (mod 3). A210698

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 89", based on the 5-celled von Neumann neighborhood. A270131

Numbers whose septenary, octal and nonary representations are prime when read in decimal. A281252

a(0)=0, a(1)=1, a(n) = smallest number such that sequence b(n) = a(n) OR a(n+1) is strictly monotonically increasing. A51145

Number of 5Xn 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors. A283546