Properties of the Number 29128

Twenty-Nine Thousand One Hundred Twenty-Eight

Basics

Value: 29127 → 29128 → 29129

Parity: even

Prime: No

Previous Prime: 29123

Next Prime: 29129

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 11 × 331

Divisors: 1, 2, 4, 8, 11, 22, 44, 88, 331, 662

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111000111001000

Octal: 70710

Duodecimal: 14A34

Hexadecimal: 71c8

Square: 848440384

Square Root: 170.66927081346543

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 m such that m + σ(m) is a repdigit. A116017

A Jacobsthal trisection. A93134

a(n) = ceiling(2ⁿ⁺¹/n). A53639

Numbers m > 0 that have a divisor d > 1 with binomial(m+d, d) == 1 mod m. A290040

a(n) = 2·a(n-1) - a(n-3) + 2·a(n-4). A135350

Partial sums of A206032 (∏_d∣n σ(d)). A280085

a(n) = ceiling(4ⁿ/n). A129788

Number of 5-step one space at a time bishop's tours on an n X n board summed over all starting positions. A187158

a(n) = n⁵ - n⁴ + n³ - n² + n. A191012

Number of (n+3) X (1+3) 0..1 arrays with each row and column divisible by 9, read as a binary number with top and left being the most significant bits. A262333