Properties of the Number 23826

Twenty-Three Thousand Eight Hundred Twenty-Six

Basics

Value: 23825 → 23826 → 23827

Parity: even

Prime: No

Previous Prime: 23819

Next Prime: 23827

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 11 × 19 ²

Divisors: 1, 2, 3, 6, 11, 19, 22, 33, 38, 57

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 101110100010010

Octal: 56422

Duodecimal: 11956

Hexadecimal: 5d12

Square: 567678276

Square Root: 154.35672968808325

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 n such that the decimal expansions of both n and n² have 2 as smallest digit and 8 as largest digit. A257368

Triangle read by rows: T(n,k) is the number of partitions of the set {1,2,...,n} having k adjacent blocks of size 2, i.e., blocks of the form (i,i+1) (0 <= k <= floor(n/2)). A184174

Triangle read by rows: odd-numbered rows of A106580. A106595

Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,27. A64250

Number of squarefree parts in the partitions of n into 7 parts. A309459

Square array A(n, k) = n! * [tⁿ] (exp(t)/(1+k-k·exp(t))) for n >= 0 and k >= 0, read by antidiagonals upwards. A369435

Poincaré series [or Poincare series] (or Molien series) for mod 2 cohomology of universal W-group W(3). A14696

a(n) = ∑_k=0..n ceiling(k³/n). A14813

Numbers k such that 319·2^k+1 is prime. A322951

Triangle read by rows: T(n,k) = 6·binomial(n,k) - 5 for 0 <= k <= n. A131065