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Properties of the Number 28159

Twenty-Eight Thousand One Hundred Fifty-Nine

Basics

Value: 28158 → 28159 → 28160

Parity: odd

Prime: No

Previous Prime: 28151

Next Prime: 28163

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 29 × 971

Divisors: 1, 29, 971, 28159

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 110110111111111

Octal: 66777

Duodecimal: 14367

Hexadecimal: 6dff

Square: 792929281

Square Root: 167.80643611018024

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

T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 nXk array. A219471
Number of partitions of n having no doubletons. By a doubleton in a partition we mean an occurrence of a part exactly twice (the partition [4,(3,3),2,2,2,(1,1)] of 18 has two doubletons, shown between parentheses). A116645
A sequence of asymptotic density ζ(10) - 1, where ζ is the Riemann ζ function. A143036
Number of label-increasing forests with branching bounded by 3. A297196
a(n) = n-th centered n-gonal number. A100119
a(n) is the smallest k such that A307092(k) = n. A307074
Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 397", based on the 5-celled von Neumann neighborhood. A281755
Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 609", based on the 5-celled von Neumann neighborhood. A289932
a(n) = 78·n2 + 1. A158769
a(n) = (A230624(n)-2)/4. A350607