Properties of the Number 40890

Forty Thousand Eight Hundred Ninety

Basics

Value: 40889 → 40890 → 40891

Parity: even

Prime: No

Previous Prime: 40883

Next Prime: 40897

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5 × 29 × 47

Divisors: 1, 2, 3, 5, 6, 10, 15, 29, 30, 47

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001111110111010

Octal: 117672

Duodecimal: 1B7B6

Hexadecimal: 9fba

Square: 1671992100

Square Root: 202.21275924134954

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

Matula-Goebel numbers of transitive rooted identity trees (or transitive finitary sets). A290760

Quadrinomial coefficients: C(2+n,n) + C(3+n,n) + C(4+n,n). A5718

G.f. is the polynomial (∏_k=1..30 (1 - x^3·k))/(1-x)³⁰. A162736

Digital sum of the 2ⁿ-th partition number. A129491

G.f. A(x) satisfies A(x) = 1 + ∑_n>=1 A(x)ⁿ * xⁿ*(1 + xⁿ)ⁿ. A194691

a(n) = ∑_k=0..n binomial(n+k-1,k) * |Stirling1(n,k)| * k!. A382830

Partial sums of A002055. A177452

Products of 5 distinct primes that are sandwiched between squarefree semiprime numbers. A376949

Continued fraction for sqrt(921). A40890