Properties of the Number 28949

Twenty-Eight Thousand Nine Hundred Forty-Nine

Basics

Value: 28948 → 28949 → 28950

Parity: odd

Prime: Yes

Previous Prime: 28933

Next Prime: 28961

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 28949

Divisors: 1, 28949

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000100010101

Octal: 70425

Duodecimal: 14905

Hexadecimal: 7115

Square: 838044601

Square Root: 170.14405661086138

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 (n+4)X(k+4) 0..2 matrices with each 5X5 subblock idempotent. A224625

Primes with digit sum = 32. A106768

Primes q = 4·p+1, where p == 2 (mod 5) is also prime. A221981

Number of simple connected graphs on n unlabeled nodes with each node a member of exactly one cycle. A380632

Primes that can be constructed by concatenating two squares >= 4. A345314

Primes p such that (p-1)*p*(p+1)-p-2 and (p-1)*p*(p+1)+p+2 are primes. A154942

Primes p such that 12·p³+-1 are twin primes. A158297

Number of (n+4)X7 0..2 matrices with each 5X5 subblock idempotent. A224620

Number of (n+4) X 10 0..2 matrices with each 5 X 5 subblock idempotent. A224623

Smaller member of a Sophie Germain pair in which each member of the pair is the smaller of its prime pair (p, (p·p*p)+2). A242281