Properties of the Number 3800

Three Thousand Eight Hundred

Basics

Value: 3799 → 3800 → 3801

Parity: even

Prime: No

Previous Prime: 3797

Next Prime: 3803

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 5 ² × 19

Divisors: 1, 2, 4, 5, 8, 10, 19, 20, 25, 38

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111011011000

Octal: 7330

Duodecimal: 2248

Hexadecimal: ed8

Square: 14440000

Square Root: 61.644140029689765

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

a(n) = n*(n+1)²/2. A6002

Triangle of polynomial coefficients related to the series expansions of (1-x)^(-1-2·n/2). A161198

Powers of cube root of 22 rounded to nearest integer. A18040

Powers of cube root of 22 rounded down. A18039

T(n,k)=Number of nXk 0..3 arrays with exactly floor(nXk/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order. A222794

Four times second pentagonal numbers: a(n) = 2·n*(3·n+1). A33580

T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nXk array. A219915

Number of partitions of n into 9 squarefree parts. A326522

Numbers k such that φ(x) = k has exactly 8 solutions. A60671

Numerator of ratio n*σ(A003961(n)) / σ(n)*A003961(n), where σ is the sum of divisors of n, and A003961 shifts the prime factorization of n one step towards larger primes. A341526