Properties of the Number 23828

Twenty-Three Thousand Eight Hundred Twenty-Eight

Basics

Value: 23827 → 23828 → 23829

Parity: even

Prime: No

Previous Prime: 23827

Next Prime: 23831

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 7 × 23 × 37

Divisors: 1, 2, 4, 7, 14, 23, 28, 37, 46, 74

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101110100010100

Octal: 56424

Duodecimal: 11958

Hexadecimal: 5d14

Square: 567773584

Square Root: 154.36320805165977

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

Numbers that are the sum of eight fourth powers in exactly nine ways. A345841

Number of partitions of n such that m(greatest part) >= m(1), where m = multiplicity. A240080

a(n) = ∑_{i∣n, j∣n, k∣n} i·j*k/gcd(i,j,k). A344133

Triangle read by rows: T(n,k) = (n+1-k)*|s(n,n+1-k)| - 2*|s(n-1,n-k)|, where s(n,k) are the signed Stirling numbers of the first kind and 1 <= k <= n. A199221

Smallest multiple of n beginning with n and having a digit sum n, or 0 if no such number exists. A77727

Number of (w,x,y,z) with all terms in {0,...,n} and at least one of these conditions holds: w=R, x=R, y=R, z<R, where R = max{w,x,y,z} - min{w,x,y,z}. A212751

Convolution of the prime numbers with φ(n). A86734

Numbers k such that 3·10^k + 37 is prime. A294122

Number of n-bead necklaces (turning over is allowed) where complements are equivalent. A11

Number of n-bead necklaces with 4 colors. A1868