Properties of the Number 30078

Thirty Thousand Seventy-Eight

Basics

Value: 30077 → 30078 → 30079

Parity: even

Prime: No

Previous Prime: 30071

Next Prime: 30089

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 557

Divisors: 1, 2, 3, 6, 9, 18, 27, 54, 557, 1114

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111010101111110

Octal: 72576

Duodecimal: 154A6

Hexadecimal: 757e

Square: 904686084

Square Root: 173.4301011935356

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

Number of exponent-2 class 2 groups of order 2ⁿ. A252784

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 485", based on the 5-celled von Neumann neighborhood. A272504

G.f.: ∏_k>=1 ∑_n>=0 x^k·n / (1 - x^n+k). A341959

Cubes of primes. A30078

Table read by antidiagonals: T(n,k) (n >= 3, k >= 1) is the number of regions formed in a regular n-gon by straight line segments when connecting the n corner vertices to the points dividing the sides into k equal parts. A356044

E.g.f. A(x) satisfies: A'(x) = A(x·A'(x))³. A233319

Number of (n+2)X(2+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 2 or 5. A252599