Properties of the Number 4128

Four Thousand One Hundred Twenty-Eight

Basics

Value: 4127 → 4128 → 4129

Parity: even

Prime: No

Previous Prime: 4127

Next Prime: 4129

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ⁵ × 3 × 43

Divisors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1000000100000

Octal: 10040

Duodecimal: 2480

Hexadecimal: 1020

Square: 17040384

Square Root: 64.24951361683604

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*(4·n+1). A7742

Multiples of 12 containing a 12 in their decimal representation. A121032

Numbers that can be expressed as the difference of the squares of primes in just two distinct ways. A90788

a(n) = ∑_d∣3 φ(d)*n^3/d. A54602

Irregular triangle T(n,k) read by rows: T(n,k) is the number of compositions of n with k descents, n>=0, 0<=k<=floor(n/3). A238344

Number T(n,k) of permutations p of [n] such that |p(i+k) - p(i)| <> k for i in [n-k]; triangle T(n,k), n>=0, 0<=k<=n, read by rows. A333706

BII-numbers of hypertrees. A326752

Number of integer partitions of n such that the least part plus the greatest part is odd. A390092

Products of the 5th power of a prime and 2 distinct primes (p⁵*q·r). A179667

Denominators of continued fraction convergents to sqrt(65). A41113