Properties of the Number 30155

Thirty Thousand One Hundred Fifty-Five

Basics

Value: 30154 → 30155 → 30156

Parity: odd

Prime: No

Previous Prime: 30139

Next Prime: 30161

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 5 × 37 × 163

Divisors: 1, 5, 37, 163, 185, 815, 6031, 30155

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111010111001011

Octal: 72713

Duodecimal: 1554B

Hexadecimal: 75cb

Square: 909324025

Square Root: 173.65195075207188

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

Triangle T(n,k) read by rows: T(n,k) = (k-1)*T(n-1,k) + (n-k+2)*T(n-1, k-1), with T(n,1)=1, for 1 <= k <= n, n >= 1. A157011

Number of partitions p of n such that (maximal multiplicity of the parts of p) >= (number of distinct parts of p). A240308

Column 1 of triangle A052308. A52309

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 17 ones. A31785

Odd n such that in n² the parity of digits alternates. A30155

a(n) = (7·n + 6)⁴. A17056