Properties of the Number 23858

Twenty-Three Thousand Eight Hundred Fifty-Eight

Basics

Value: 23857 → 23858 → 23859

Parity: even

Prime: No

Previous Prime: 23857

Next Prime: 23869

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 79 × 151

Divisors: 1, 2, 79, 151, 158, 302, 11929, 23858

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101110100110010

Octal: 56462

Duodecimal: 11982

Hexadecimal: 5d32

Square: 569204164

Square Root: 154.4603508995108

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

T(n,k) = Number of n X k binary matrices with no 2 X 2 circuit having pattern 0101 in any orientation. A181245

a(n) = a(n-1) + ∑_{k=1..floor(n/4)} a(n-4k), with a(0)=1. A113439

Triangle read by rows: T(n,k) is number of Dyck paths of semilength n having k ascents of length 1 that start at an odd level. A102405

a(n) = prime(n)*(prime(n+1) + 1). A123134

Number of 0/1 colorings of an n X n square for which no 2 by 2 subsquare is monochromatic. A133130

Third row of A113439. A113442

a(n) = A130179(n)/81. A130085

Number of n X 4 binary matrices with no 2 X 2 circuit having pattern 0101 in any orientation. A181239

Number of 3-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions. A187298

Number of n X 2 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 3 binary array having a sum of three or less, with rows and columns of the latter in lexicographically nondecreasing order. A227265