Properties of the Number 40003

Forty Thousand Three

Basics

Value: 40002 → 40003 → 40004

Parity: odd

Prime: No

Previous Prime: 39989

Next Prime: 40009

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 109 × 367

Divisors: 1, 109, 367, 40003

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 1001110001000011

Octal: 116103

Duodecimal: 1B197

Hexadecimal: 9c43

Square: 1600240009

Square Root: 200.00749985938026

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 n with property that n is a substring of its base 5 representation. A38105

Triangle T(n, k, m) = coefficients of p(x, n, m) where p(x,n,m) = (x+1)*p(x, n-1, m) + (2^m+n-1 + 2^n-2*[n>=3])*x·p(x, n-2, m) and m=0, read by rows. A154983

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 31 ones. A31799

A Langford-like sequence. A108401

Numbers that can be written in at least 3 ways as the sum of a Lucas number (A000032) and a square. A362528

Continued fraction for sqrt(6). A40003

Numbers k such that 4·10^k+3 is prime. A101397

Indices of primes in sequence defined by A(0) = 43, A(n) = 10·A(n-1) - 27 for n > 0. A101713

Primes of the form 4·10ⁿ+3. A177507