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Properties of the Number 28542

Twenty-Eight Thousand Five Hundred Forty-Two

Basics

Value: 28541 → 28542 → 28543

Parity: even

Prime: No

Previous Prime: 28541

Next Prime: 28547

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 67 × 71

Divisors: 1, 2, 3, 6, 67, 71, 134, 142, 201, 213

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110111101111110

Octal: 67576

Duodecimal: 14626

Hexadecimal: 6f7e

Square: 814645764

Square Root: 168.94377763031108

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

Let en(k)>=0 denote the exponent of prime(k) in the prime power representation of n. The sequence lists 1 followed by numbers n for which en(2·i-1)=en(2·i), for all i>=1. A275407
Positions of sevens (ground states) in A084451. A84449
Numbers m such that abs(K(m+1) - K(m)) = 2, and both m and m+1 are squarefree (A005117), where K(m) = A002034(m) is the Kempner function. A346212
Reverse of largest prime factor of n = smallest prime factor of n+1; a(1)=1. A71393
Number of n X 2 binary arrays whose sum with another n X 2 binary array containing no more than a single 1 has rows and columns in lexicographically nondecreasing order. A225894
Number of ordered ways to achieve a score of n in American football taking into account different scoring methods. A237997
Numbers k such that starting with prime(k) 3, 5, 7, 9, and 11 consecutive primes sum up to prime numbers. A288142
Character of extremal vertex operator algebra of rank 37/2. A28542