Properties of the Number 18975

Eighteen Thousand Nine Hundred Seventy-Five

Basics

Value: 18974 → 18975 → 18976

Parity: odd

Prime: No

Previous Prime: 18973

Next Prime: 18979

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 ² × 11 × 23

Divisors: 1, 3, 5, 11, 15, 23, 25, 33, 55, 69

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100101000011111

Octal: 45037

Duodecimal: AB93

Hexadecimal: 4a1f

Square: 360050625

Square Root: 137.7497731395591

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 integer compositions of n with all distinct 0-based partial alternating sums. A392703

Sum of primes p with n² < p < (n+1)². A108314

Coefficient of x⁴ in (1-x-x²)^-n. A6504

Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 846", based on the 5-celled von Neumann neighborhood. A290554

Number of partitions of n into parts of 22 kinds. A23020

Number of rooted twice-partitions of n where the composite rooted partition is constant. A301760

a(n) = floor(n*(n-1)*(n-2)*(n-3)/16). A11926

Numbers n such that n² can be split into two nonzero squares (perhaps with leading zeros) in exactly two different ways. A54737

Totally multiplicative sequence with a(p) = 8p-1 for prime p. A166657

Number of zero-sum -n..n arrays of 4 elements with first and second differences also in -n..n. A201875