Properties of the Number 18072

Eighteen Thousand Seventy-Two

Basics

Value: 18071 → 18072 → 18073

Parity: even

Prime: No

Previous Prime: 18061

Next Prime: 18077

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ² × 251

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100011010011000

Octal: 43230

Duodecimal: A560

Hexadecimal: 4698

Square: 326597184

Square Root: 134.43213901444847

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 k² contains exactly 9 different digits. A54037

Numbers whose square is a zeroless pandigital number (i.e., use the digits 1 through 9 once). A71519

a(n) = a(n-1) + a(n-1-(number of odd terms so far)). A7604

Same rule as Aitken triangle (A011971) except a(0,0)=0, a(1,0)=1. A46936

a(n) = p(n)*p(n+2)-p(n+1), where p(n) is the n-th prime. A152530

Numbers k such that any two consecutive decimal digits of k² differ by 1 after arranging the digits in decreasing order. A370362

Total sum of parts of multiplicity 9 in all partitions of n. A222737

a(n) is a refactorable number and the sum of all refactorable numbers <= a(n) is also a refactorable number. A235177

Number of compositions of n with exactly 3 transitions between different parts. A244715

Numbers whose square contains all of the digits 1 through 9. A294661