Properties of the Number 12403

Twelve Thousand Four Hundred Three

Basics

Value: 12402 → 12403 → 12404

Parity: odd

Prime: No

Previous Prime: 12401

Next Prime: 12409

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 79 × 157

Divisors: 1, 79, 157, 12403

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000001110011

Octal: 30163

Duodecimal: 7217

Hexadecimal: 3073

Square: 153834409

Square Root: 111.36875683960919

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

Triangular numbers (A000217) with prime indices. A34953

Pseudoprimes to base 3. A5935

a(n) = (2·n+1)*(4·n+1). A14634

Strong pseudoprimes to base 3. A20229

Numbers of the form p·q, p and q prime with q=2·p-1. A129521

Triangular numbers which are the product of two primes. A68443

Number of vertices formed by drawing the lines connecting any two of the 2*(n+2) perimeter points of a 3 X (n+1) rectangular grid of points (or equally, a 2 X n grid of squares). A331763

Nonprimes k such that 3^k == 3 (mod k). A122780

Euler pseudoprimes to base 3: composite integers such that abs(3^{(n - 1}/2)) == 1 mod n. A262051

Pseudoprimes to base 10. A5939