Properties of the Number 23825

Twenty-Three Thousand Eight Hundred Twenty-Five

Basics

Value: 23824 → 23825 → 23826

Parity: odd

Prime: No

Previous Prime: 23819

Next Prime: 23827

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 ² × 953

Divisors: 1, 5, 25, 953, 4765, 23825

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101110100010001

Octal: 56421

Duodecimal: 11955

Hexadecimal: 5d11

Square: 567630625

Square Root: 154.35349040433132

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

a(0)=4; a(n)=n²+a(n-1) for n>0. A153058

Number of vertices in a complete bipartite graph where the vertices in the two parts are placed on opposite sides of a parabola at integer·coordinates |x| = 1, 2, ...n. A392425

Triangle of coefficients of polynomials v(n,x) jointly generated with A210221; see the Formula section. A210599

a(n) = 66·n² - 1. A158693

Numbers k such that the continued fraction for sqrt(k) has period 63. A20402

Number of binary strings of length n with no substrings equal to 0001, 0110, or 1110. A164482

L.g.f.: log(∑_k>=0 k! * x^k / ∏_j=1..k (1 - j·x)). A331335

Numbers n such that 7ⁿ-6^n-1 is prime. A273524

Sum of exponents in prime-power factorization of C(3n,n+3). A23825

Numbers k such that k, k + 1 and k + 2 have the same number of divisors in Gaussian integers. A332313