Properties of the Number 72554

Seventy-Two Thousand Five Hundred Fifty-Four

Basics

Value: 72553 → 72554 → 72555

Parity: even

Prime: No

Previous Prime: 72551

Next Prime: 72559

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 36277

Divisors: 1, 2, 36277, 72554

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10001101101101010

Octal: 215552

Duodecimal: 35BA2

Hexadecimal: 11b6a

Square: 5264082916

Square Root: 269.3584971743049

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

Start with a(1) = 1, a(2) = 1, then a(n)*3^k = a(n+1) + a(n+2), with 3^k the smallest power of 3 (k>0) such that all terms a(n) are positive integers. A233525

Numbers k such that k² + k - 1 and k² + k + 1 are twin primes and (k + 1)*(k + 1) + k + 1 - 1 and (k + 1)*(k + 1) + k + 1 + 1 are also twin primes. A88498

Number of nX7 0..1 arrays with every element unequal to 0, 1, 2 or 7 king-move adjacent elements, with upper left element zero. A304229

30·a(n) is the gap between sexy prime triples in the n-th sexy prime triple triple whose initial term is 7. A90776

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2 or 7 king-move adjacent elements, with upper left element zero. A304230

E24 range of preferred resistor values in electronic engineering. A72554