Properties of the Number 30198

Thirty Thousand One Hundred Ninety-Eight

Basics

Value: 30197 → 30198 → 30199

Parity: even

Prime: No

Previous Prime: 30197

Next Prime: 30203

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 7 × 719

Divisors: 1, 2, 3, 6, 7, 14, 21, 42, 719, 1438

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 111010111110110

Octal: 72766

Duodecimal: 15586

Hexadecimal: 75f6

Square: 911919204

Square Root: 173.77571752117728

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

Euler transform of reduced totient function ψ(n), cf. A002322. A61257

Triangle T(n,m) (read as T(1,1); T(2,1), T(2,2); T(3,1), T(3,2), T(3,3);) Number of distinct non-recursive Catalan Automorphisms whose minimum clause-representation requires examination of n nodes in total, divided into m non-default clauses. A89831

a(n) is the number of simple linear diagrams with n+1 chords. A278991

Number of distinct nonnegative rational numbers that can be obtained in n steps by a straight-line program (SLP) starting at 1 using addition, subtraction, multiplication and division. A288850

Number of trees of diameter 8. A306

a(n) = A000108(n)*(A000142(n+1)-1). A89833

Number of basis partitions of n+49 with Durfee square size 7. A53802

Numbers k such that 11·13^k + 2 is prime. A84074

a(n) = n⁽ⁿ⁺¹^(n+2)). A30198