Properties of the Number 72823

Seventy-Two Thousand Eight Hundred Twenty-Three

Basics

Value: 72822 → 72823 → 72824

Parity: odd

Prime: Yes

Previous Prime: 72817

Next Prime: 72859

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 72823

Divisors: 1, 72823

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10001110001110111

Octal: 216167

Duodecimal: 36187

Hexadecimal: 11c77

Square: 5303189329

Square Root: 269.8573697344581

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

Primes p such that q-p = 36, where q is the next prime after p. A134117

First member of the least set of 3 consecutive primes such that the sum of each pair of consecutive primes in this set is a multiple of n. A382698

Primes p such that 2·p² + 3 and 2·p² + 5 are also primes. A247197

Primes of the form 7n² - 5. A201851

a(1) = 1; a(2) = 1; for n >= 3, a(n) = a(n-1) / gcd(a(n-1), n-1) + a(n-2) / gcd(a(n-2), n-2). A330806

Position of Fibonacci numbers in the EKG sequence. A140469

Number of n X n binary arrays with all ones connected only in a 1100-1111-0001 pattern in any orientation. A146847

Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1100-1111-0001 pattern in any orientation. A146849

Numbers that are not the sum of two powers of 2. A72823