Properties of the Number 23864

Twenty-Three Thousand Eight Hundred Sixty-Four

Basics

Value: 23863 → 23864 → 23865

Parity: even

Prime: No

Previous Prime: 23857

Next Prime: 23869

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ³ × 19 × 157

Divisors: 1, 2, 4, 8, 19, 38, 76, 152, 157, 314

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101110100111000

Octal: 56470

Duodecimal: 11988

Hexadecimal: 5d38

Square: 569490496

Square Root: 154.47977213862015

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

Integers that are Rhonda numbers to base 30. A255736

Leading term of n-th row of A081491. A81490

Number of compositions (ordered partitions) of n into an odd number of squares. A339419

a(1) = 1, a(2) = 4; for n > 2, a(n) = k·a(n-1) + 1 where k is smallest number > 1 such that k·a(n-1) + 1 is a multiple of n. A69563

Rectangular array: (row n) = b**c, where b(h) = h, c(h) = binomial(2·n-4+2·h,n-2+h), n>=1, h>=1, and ** = convolution. A213853

a(n) = 2*( a(n-5) + a(n-8) + a(n-11) ) for n >= 12. A226592

p·B_p-1+1 modulo p², where p = prime(n) and B_i denotes the i-th Bernoulli number. A268000

a(n) = (prime(n)+1) * prime(n+1). A345727

a(n) = (5·n+2)*(5·n+7). A85036

Rectangular table, read by antidiagonals, such that the g.f. of row n, R_n(y), satisfies: R_n(y) = ∑_k>=0 y^k * [R_n·k(y)]^n·k for n>=0, with R₀(y)=1/(1-y). A124560