Properties of the Number 30846

Thirty Thousand Eight Hundred Forty-Six

Basics

Value: 30845 → 30846 → 30847

Parity: even

Prime: No

Previous Prime: 30841

Next Prime: 30851

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 53 × 97

Divisors: 1, 2, 3, 6, 53, 97, 106, 159, 194, 291

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100001111110

Octal: 74176

Duodecimal: 15A26

Hexadecimal: 787e

Square: 951475716

Square Root: 175.6302935145301

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

Partial sums of A299266. A299267

Number of 3-covers of an unlabeled n-set. A5783

Triangle read by rows. The definition is by diagonals. The r-th diagonal from the right, for r >= 0, is given by b(0) = b(1) = 1; b(n+1) = ∑_k=0..n binomial(n+2,k+r)*a(k). A121207

Third-from-right diagonal of triangle A121207. A45501

Triangle read by rows: T(n,k) is the number of set partitions of {1,2,...,n} in which the size of the last block is k, 1<=k<=n; the blocks are ordered with increasing least elements. A124496

Eigentriangle of the binomial matrix. A186020

Triangle read by rows, (1 / ((-1)*A129184·A007318 + I)) - I, I = Identity matrix. A160185

Number of rooted trees with n nodes and 12 leaves. A55287

Integers i such that 9·i = 25 X i, but 17·i is not 49 X i. A115811

Row sums of triangle A137639. A137640