Properties of the Number 90157

Ninety Thousand One Hundred Fifty-Seven

Basics

Value: 90156 → 90157 → 90158

Parity: odd

Prime: No

Previous Prime: 90149

Next Prime: 90163

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 89 × 1013

Divisors: 1, 89, 1013, 90157

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110000000101101

Octal: 260055

Duodecimal: 44211

Hexadecimal: 1602d

Square: 8128284649

Square Root: 300.2615526503518

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 (n+1)X(k+1) 0..1 arrays with every element equal to some horizontal or antidiagonal neighbor, with top left element zero. A232316

Number of chiral pairs of necklaces with n beads and two colors (color complements being equivalent); i.e., turning the necklace over neither leaves it unchanged nor simply swaps the colors. A59053

a(n) = A053656(n) - A000011(n). A256216

Numbers which form a prime by appending a 3-digit odd number and form no primes by appending any 1- or 2-digit odd number not beginning with 0. A91089

Number of Barlow packings with group P63mc that repeat after 2n layers. A11948

Number of chiral pairs of set partitions of a primitive cycle of n elements having exactly two different elements. A308706

Number of n-bead bracelet structures using exactly two different colored beads that are not self-equivalent under either a nonzero rotation or reversal (turning over bracelet). A327734

Number of (n+1)X(3+1) 0..1 arrays with every element equal to some horizontal or antidiagonal neighbor, with top left element zero. A232311

Number of (5+1) X (n+1) 0..1 arrays with every element equal to some horizontal or antidiagonal neighbor, with top left element zero. A232321

Primes of the form identical digits preceded by a 9. A90157