Properties of the Number 8370

Eight Thousand Three Hundred Seventy

Basics

Value: 8369 → 8370 → 8371

Parity: even

Prime: No

Previous Prime: 8369

Next Prime: 8377

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 5 × 31

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 27

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10000010110010

Octal: 20262

Duodecimal: 4A16

Hexadecimal: 20b2

Square: 70056900

Square Root: 91.48770409186143

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

Pairs (j, k) of numbers j<k such that φ(j) = φ(k), σ(j) = σ(k), d(j) = d(k). A134922

Number of trimmed trees with n nodes. A2988

T(n,k)=Number of length n+5 0..k arrays with some three disjoint pairs in each consecutive six terms having the same sum. A248489

Numbers k such that σ(x) = k has exactly 7 solutions. A60663

Number of ways to write n as an ordered sum of 10 nonzero triangular numbers. A340955

a(n) = floor( γ(n+1/7)/γ(1/7) ). A20079

Numbers k such that 4·k-1, 8·k-1 and 16·k-1 are all primes. A101790

Number of 3-almost primes t such that 2ⁿ < t <= 2ⁿ⁺¹. A120034

a(n) = n*(13·n-3)/2. A186030

Expansion of (1/(1 - x))*∑_k>=0 k!*x^k*(k+1/2)/∏_j=1..k (1 - x^j). A303664