Properties of the Number 28151

Twenty-Eight Thousand One Hundred Fifty-One

Basics

Value: 28150 → 28151 → 28152

Parity: odd

Prime: Yes

Previous Prime: 28123

Next Prime: 28163

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 28151

Divisors: 1, 28151

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110111110111

Octal: 66767

Duodecimal: 1435B

Hexadecimal: 6df7

Square: 792478801

Square Root: 167.7825974289348

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

Father primes of order 11. A136080

Smallest weak prime in base n. A186995

Primes p such that 42·p-1, 42·p+1 and 48·p-1, 48·p+1 are twin primes. A138697

a(n) = 529·n² - 746·n + 263. A156842

G.f. satisfies A(x) = 1/(1 - x) + x/A(x)³. A366358

Primes p such that continued fraction of (1 + sqrt(p))/2 has period 12 : primes in A146336. A146357

Primes p such that p³-p-+1 are twin primes. A158295

Numerators of continued fraction convergents to sqrt(356). A41674

Numbers n such that n and the four successive integers produce primes if substituted for·in the polynomial 5x²+5x+1. See A090562, A090563. Terms show that longer similar chains also exist. A90100

Primes p such that all the digits needed to write the consecutive Primes from 2 to p fill exactly a square (no holes, no overlaps). A158024