Properties of the Number 90749

Ninety Thousand Seven Hundred Forty-Nine

Basics

Value: 90748 → 90749 → 90750

Parity: odd

Prime: Yes

Previous Prime: 90731

Next Prime: 90787

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 90749

Divisors: 1, 90749

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110001001111101

Octal: 261175

Duodecimal: 44625

Hexadecimal: 1627d

Square: 8235381001

Square Root: 301.24574685794323

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

Primes p such that q - p = 38, where q is the next prime after p. A134118

Primes 10k + 9 preceding the maximal gaps in A269261. A269262

Emirps starting and ending with composite digit 9. A128374

Lesser of pseudo twin primes to base 2. A192297

Chen primes p such that their p + 2 counterpart is a Sarrus number (pseudoprime to base 2). A109994

Triangle T(n,r), read by rows, where the r-th column is expansion of A(x)^r, with A(x) = x * (x+1) * (2·x⁴+4·x³-2·x+1) * (x⁴+2·x³-x+1) / (x²+x-1)⁶. A187055

Smallest prime k such that σ(k - m) = σ(k + m) has exactly n solutions, where m > 0 and σ is A000203. A249690

Numbers k such that (47^k - 4^k)/43 is prime. A392056

a(n) = 12·C(2n+1,n-5) / (n+7). A90749