Properties of the Number 30808

Thirty Thousand Eight Hundred Eight

Basics

Value: 30807 → 30808 → 30809

Parity: even

Prime: No

Previous Prime: 30803

Next Prime: 30809

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 3851

Divisors: 1, 2, 4, 8, 3851, 7702, 15404, 30808

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100001011000

Octal: 74130

Duodecimal: 159B4

Hexadecimal: 7858

Square: 949132864

Square Root: 175.52207838331907

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

Pascal-(1,8,1) array. A143683

T(n,k) = Number of n X k 0..1 arrays with no element equal to more than two of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281080

Column 1 and row sums of triangle A130580. A130581

A331776(n)/4. A332594

Numbers t which satisfy the equation: t mod k = floor((t - k)/k) mod k (1 <= k <= t) only for k = 1 and t. A375007

Sum of first n 8-almost primes. A86061

a(n) = number of partitions of n whose difference multiset has at least one duplicate; see Comments. A364612

Discriminants of totally complex sextic fields (negated). A23687

Number of nX4 0..1 arrays with no element equal to more than two of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281076

Number of nX7 0..1 arrays with no element equal to more than two of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281079