Properties of the Number 23105

Twenty-Three Thousand One Hundred Five

Basics

Value: 23104 → 23105 → 23106

Parity: odd

Prime: No

Previous Prime: 23099

Next Prime: 23117

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 5 × 4621

Divisors: 1, 5, 4621, 23105

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 101101001000001

Octal: 55101

Duodecimal: 11455

Hexadecimal: 5a41

Square: 533841025

Square Root: 152.00328943809077

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

Number of integer partitions of n with a neighborless part. A356236

Numbers k such that A003415(k) == A276085(k) (mod 2310), where A003415 is the arithmetic derivative and A276085 is the primorial base log-function. A391864

a(n) = 16·n² + 1. A108211

a(n) = 64·n² + 1. A158686

Sum of the squares of the larger parts of the partitions of 2n into two squarefree parts. A280322

a(n) = S(5·n,5)/S(n,5) where S(n,m) = ∑_k=0..n binomial(n,k)*Fibonacci(m·k). A87425

Centered octahemioctahedral numbers: a(n) = (4·n³+24·n²+8·n+3)/3. A274974

Positions of 0's in A330314. A330325

Number of tilings of an n X 1 rectangle by tiles of dimension 1 X 1 and 2 X 1 such that every tile shares an equal-length edge with a tile of the same size. A248880

a(0)=0, a(1)=1; a(n) = 13·a(n-1) - 11·a(n-2). A84328