Properties of the Number 27028

Twenty-Seven Thousand Twenty-Eight

Basics

Value: 27027 → 27028 → 27029

Parity: even

Prime: No

Previous Prime: 27017

Next Prime: 27031

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 29 × 233

Divisors: 1, 2, 4, 29, 58, 116, 233, 466, 932, 6757

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110100110010100

Octal: 64624

Duodecimal: 13784

Hexadecimal: 6994

Square: 730512784

Square Root: 164.40194646049662

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

Primitive numbers in A229307. A229311

Cyclops triangular numbers. A160717

a(n) = binomial(F(n), 2) where F(n) = A000045(n). A191797

Triangular numbers which are the sum of two squares. A73613

a(n) = smallest k where (10^k+1)=0 mod prime(n)², or 0 if no such k exists. A86981

Numbers k with the property that the symmetric representation of σ(k) has four parts, each of width one and two regions meet at the center of the Dyck path. A264104

Number of partitions of 2n in which both odd parts and parts that are multiples of 3 occur with even multiplicities. There is no restriction on the other even parts. A101230

Number of parts in all partitions of n with largest multiplicity five. A320375

Even composite integers m such that U(m)² == 1 (mod m) and V(m) == 7 (mod m), where U(m)=A004187(m) and V(m)=A056854(m) are the m-th generalized Lucas and Pell-Lucas numbers of parameters a=7 and b=1, respectively. A337782

Triangular numbers with palindromic indices. A89717