Properties of the Number 90148

Ninety Thousand One Hundred Forty-Eight

Basics

Value: 90147 → 90148 → 90149

Parity: even

Prime: No

Previous Prime: 90127

Next Prime: 90149

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 31 × 727

Divisors: 1, 2, 4, 31, 62, 124, 727, 1454, 2908, 22537

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 10110000000100100

Octal: 260044

Duodecimal: 44204

Hexadecimal: 16024

Square: 8126661904

Square Root: 300.2465653425531

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

G.f.: ∑_k>=0 q(k)² * x^k / ∑_k>=0 q(k)*x^k, where q(n) is A000009(n). A304877

Even terms in A015922. A130134

Terms in A015922 not divisible by 3. A130133

Binomial transform of A101910, where A101910(n) = a(A000120(n-1)) for n>0 with A101910(0) = 1. A101911

Duplicate of A130134. A33555

Jordan function J₂(n) (a generalization of φ(n)). A7434

Primes of the form identical digits followed by a 9. A90148

Squares s such that first m and last m digits of the binary representation are perfect positive squares written in binary, and m = floor(binaryLength(s)/2), where binaryLength(s) = A070939(s) is the binary length of s. A226836

Minimal number of edges in any broadcast graph with n nodes. A250116