Properties of the Number 27390

Twenty-Seven Thousand Three Hundred Ninety

Basics

Value: 27389 → 27390 → 27391

Parity: even

Prime: No

Previous Prime: 27367

Next Prime: 27397

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5 × 11 × 83

Divisors: 1, 2, 3, 5, 6, 10, 11, 15, 22, 30

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110101011111110

Octal: 65376

Duodecimal: 13A26

Hexadecimal: 6afe

Square: 750212100

Square Root: 165.4992447112675

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 k such that lcm(1,2,3,...,k)/13 equals the denominator of the k-th harmonic number H(k). A112818

T(n,k)=Number of nXk 0..3 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1)X(k+1) 0..3 array without adjacent equal elements in the latter. A229320

a(n) = 5·4*3·2*1 - 10·9*8·7*6 + 15·14·13·12·11 - 20·19·18·17·16 + ... - (up to the n-th term). A319888

a(n) = (4·n+1)*(4·n+2) = (4·n+2)!/(4·n)!. A157870

Positive numbers k such that -k, -(k + 1), and -(k + 2) are 3 consecutive negative negaFibonacci-Niven numbers (A331088). A331090

Expansion of ∏_m>=1 (1+m·q^m)^-15. A22707

Real part of ∑_k=0..n (k + i^k)², where i=sqrt(-1). A236377

Numbers k such that A008475(k)+1 = A008475(k+1). A333801

Numbers k such that A181894(k)+1 = A181894(k+1). A333802

Multiplicity of highest weight (or singular) vectors associated with character chi₆₁ of Monster module. A34449