Properties of the Number 67165

Sixty-Seven Thousand One Hundred Sixty-Five

Basics

Value: 67164 → 67165 → 67166

Parity: odd

Prime: No

Previous Prime: 67157

Next Prime: 67169

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 7 × 19 × 101

Divisors: 1, 5, 7, 19, 35, 95, 101, 133, 505, 665

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000011001011101

Octal: 203135

Duodecimal: 32A51

Hexadecimal: 1065d

Square: 4511137225

Square Root: 259.162111428349

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

Irregular triangle read by rows where T(n,k) is the number of labeled simple graphs with n vertices and exactly k triangles, 0 <= k <= binomial(n,3). A372170

a(n) = (11·n + 4)*C(n+3, 3)/4. A55268

Number of 8k+3 primes (A007520) in range [2ⁿ,2ⁿ⁺¹]. A95010

Numbers n such that n and n+-1 have 4 distinct prime factors. A168628

Number of 5-gonal compositions of n into positive parts. A69983

Number of partitions of n with ten parts in which no part occurs more than twice. A320598

Number of Dyck n-paths all of whose ascents have lengths equal to 1 (mod 3). A212383

a(n) = A067153(n)/n. A67165

Number of (n+1)X(2+1) 0..3 arrays with every 2X2 subblock summing to 4 5 6 7 or 8. A251493