Properties of the Number 190

One Hundred Ninety

Basics

Value: 189 → 190 → 191

Parity: even

Prime: No

Previous Prime: 181

Next Prime: 191

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 19

Divisors: 1, 2, 5, 10, 19, 38, 95, 190

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10111110

Octal: 276

Duodecimal: 13A

Hexadecimal: be

Square: 36100

Square Root: 13.784048752090222

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

Triangular numbers: a(n) = binomial(n+1,2) = n*(n+1)/2 = 0 + 1 + 2 + ... + n. A217

Hexagonal numbers: a(n) = n*(2·n-1). A384

a(n) = prime(n) - 1. A6093

Niven (or Harshad, or harshad) numbers: numbers that are divisible by the sum of their digits. A5349

Numbers that are the product of exactly three (not necessarily distinct) primes. A14612

Positive integers congruent to 2 (mod 4): a(n) = 4·n+2, for n >= 0. A16825

The Collatz or 3x+1 map: a(n) = n/2 if n is even, 3n + 1 if n is odd. A6370

Sphenic numbers: products of 3 distinct primes. A7304

Number of partitions of n into an odd number of parts. A27193

Signature-permutation of a Catalan automorphism: Reflect a rooted plane binary tree; Deutsch's 1998 involution on Dyck paths. A57163

We use cookies

Some cookies are essential for Natory to function, like keeping you signed in. We also use optional cookies to understand how the app is used and improve it over time. Learn more in our Privacy Policy. You can manage your preferences anytime.