Properties of the Number 40990

Forty Thousand Nine Hundred Ninety

Basics

Value: 40989 → 40990 → 40991

Parity: even

Prime: No

Previous Prime: 40973

Next Prime: 40993

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 5 × 4099

Divisors: 1, 2, 5, 10, 4099, 8198, 20495, 40990

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010000000011110

Octal: 120036

Duodecimal: 1B87A

Hexadecimal: a01e

Square: 1680180100

Square Root: 202.45987256738061

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

Numerator of Sum(binomial(n,k)/(n²+k²+1), k=0..n). A86720

a(n) is the least k such that A330241(k) = n. A329773

Primes p such that x⁵ = 23 has a solution mod p. A40990

Denominator of ∑_k=0..n binomial(n,k)/(n²+k²+1). A86721