Properties of the Number 30955

Thirty Thousand Nine Hundred Fifty-Five

Basics

Value: 30954 → 30955 → 30956

Parity: odd

Prime: No

Previous Prime: 30949

Next Prime: 30971

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 41 × 151

Divisors: 1, 5, 41, 151, 205, 755, 6191, 30955

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100011101011

Octal: 74353

Duodecimal: 15AB7

Hexadecimal: 78eb

Square: 958212025

Square Root: 175.94033079427808

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

Expansion of (1 + 10·x + 20·x² + 10·x³ + x⁴)/(1-x)⁵. A160747

a(n) = S(5,n)/S(1,n), where S(r,n) = ∑_{k = 0..floor(n/2)} ( binomial(n,k) - binomial(n,k-1) )^r. A361888

a(n) = S(5,2·n-1)/S(1,2·n-1), where S(r,n) = ∑_{k = 0..floor(n/2)} ( binomial(n,k) - binomial(n,k-1) )^r. A361889

a(n) = a(n-1) + 5·a(n-2), for n >= 0, with a(0) = 1 and a(1) = 0. A365824

Numbers n such that prime(n) + reversal(prime(n)) is a square. A227371

Numbers whose set of base-13 digits is {1,2}. A32933

Expansion of sin(log(1+x))*cos(x). A9455

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, -1), (-1, 1, 1), (1, -1, 0), (1, 1, 0)}. A149163

Total number of maximal nilpotent subgroups of the alternating group, counting conjugates as distinct. A218964

Numbers k such that (598·10^k - 31)/9 is prime. A281991