Properties of the Number 18474

Eighteen Thousand Four Hundred Seventy-Four

Basics

Value: 18473 → 18474 → 18475

Parity: even

Prime: No

Previous Prime: 18461

Next Prime: 18481

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 3079

Divisors: 1, 2, 3, 6, 3079, 6158, 9237, 18474

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100100000101010

Octal: 44052

Duodecimal: A836

Hexadecimal: 482a

Square: 341288676

Square Root: 135.9190935814391

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 prime(k) + prime(k+1) is a square. A64397

Numbers k such that A019320(k) is in A217468. A297412

Numbers k such that 2^m == 2 (mod m*(m-1)), where m=A019320(k). A297413

Number of (n+2)X(2+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 1 3 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 1 3 6 or 7. A252299

Numbers whose base-4 representation contains exactly three 0's and four 2's. A45056

Partial sums of tetradic primes (A068188). A119742

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 1 3 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 1 3 6 or 7. A252305

Irregular array where the n-th row are the divisors, not occurring earlier in the sequence, of the sum of the terms in all previous rows. a(1)=2. A120576

Terms of A349937 that are not divisible by 3: numbers k > 1 not divisible by 2 or 3 such that A309906(k-1) < A309906(k) > A309906(k+1). A349941

Divisors of 474. A18474