Properties of the Number 90015

Ninety Thousand Fifteen

Basics

Value: 90014 → 90015 → 90016

Parity: odd

Prime: No

Previous Prime: 90011

Next Prime: 90017

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 17 × 353

Divisors: 1, 3, 5, 15, 17, 51, 85, 255, 353, 1059

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10101111110011111

Octal: 257637

Duodecimal: 44113

Hexadecimal: 15f9f

Square: 8102700225

Square Root: 300.02499895842016

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

a(n) = 225·n² + 15. A158557

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 40. A31718

Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 2 X n array. A219803

Number of length-(n+1) 0..2 arrays with new values introduced in sequential order, and with new repeated values introduced in sequential order, both starting with zero. A268321

Number of occurrences of n in A392781. A392816

Numbers n such that A = n - digitsum(n) is divisible by the largest power of 10 <= A. A242474

Triangle read by rows of partial sums of binomial coefficients: T(n,k) = ∑_i=0..k binomial(n,i) (0 <= k <= n); also dimensions of Reed-Muller codes. A8949

Triangle of partial row sums of triangle A007318(n,m) (Pascal's triangle). Triangle A008949 read backwards. Riordan (1/(1-2x), x/(1-x)). A55248

Power series expansion of the Rogers-Ramanujan continued fraction 1+x/(1+x²/(1+x³/(1+x⁴/(1+...)))). A3823

Fixed under 0 -> 10, 1 -> 100. A4641