Properties of the Number 74531

Seventy-Four Thousand Five Hundred Thirty-One

Basics

Value: 74530 → 74531 → 74532

Parity: odd

Prime: Yes

Previous Prime: 74527

Next Prime: 74551

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 74531

Divisors: 1, 74531

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010001100100011

Octal: 221443

Duodecimal: 3716B

Hexadecimal: 12323

Square: 5554869961

Square Root: 273.003662979089

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 of the form k² + 2. A56899

Primes of the form m^k+k, with m and k > 1. A99227

Primes of the form A162143(k) + 2. A164518

Primes prime(k) such that 2*(prime(k)² - prime(k-1)²) is a perfect square. A335410

Primes that are equal to the mean of 5 consecutive squares. A129388

G.f.: ∑_k>=1 x^k/(1-x^k) * ∏_k>=1 1/(1-x^k)². A305119

Primes of the form 7n³-5. A200951

Numbers k such that 2^k-1 == 1 + b·k (mod k²), where b divides k - 2^p for some integer p >= 0 and 2^p <= b. A186884

Composite squarefree numbers n such that the ratio (n + 1/3)/(p(i) - 1/3) is an integer, where p(i) are the prime factors of n. A226114

a(n) = 3ⁿ + (-1)ⁿ - [1/(n+1)], where [] represents the floor function. A84182