Properties of the Number 4028

Four Thousand Twenty-Eight

Basics

Value: 4027 → 4028 → 4029

Parity: even

Prime: No

Previous Prime: 4027

Next Prime: 4049

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 19 × 53

Divisors: 1, 2, 4, 19, 38, 53, 76, 106, 212, 1007

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 111110111100

Octal: 7674

Duodecimal: 23B8

Hexadecimal: fbc

Square: 16224784

Square Root: 63.46652661048972

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

Sum of the first n primes. A7504

Triangle T(n,k) of numbers/2 of non-extendable (complete) non-self-adjacent simple paths within a square lattice bounded by rectangles with nodal dimensions n and k, n >= k >= 2. A213106

a(n) = Sum{T(i,j)}, 0<=j<=i, 0<=i<=n, T given by A026552. A26566

Heinz numbers of integer partitions with as many even parts as odd parts and as many even conjugate parts as odd conjugate parts. A350946

Number of partitions of n containing a clique of size 6. A183563

a(n) = ∑_{k=0..floor(n/2)} T(n,k), T given by A026769. A26777

Four times the sum of all divisors of all positive integers <= n. A243980

10-step Fibonacci sequence starting with 0,0,0,0,0,1,0,0,0,0. A251762

Expansion of ∏_k>=1 (1 + x^k + x^3·k). A264905

Number of ways to write n as an ordered sum of 4 squarefree numbers. A341064