Properties of the Number 1674

One Thousand Six Hundred Seventy-Four

Basics

Value: 1673 → 1674 → 1675

Parity: even

Prime: No

Previous Prime: 1669

Next Prime: 1693

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 31

Divisors: 1, 2, 3, 6, 9, 18, 27, 31, 54, 62

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 11010001010

Octal: 3212

Duodecimal: B76

Hexadecimal: 68a

Square: 2802276

Square Root: 40.91454509095757

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

Least k such that H(k) > n, where H(k) is the harmonic number ∑_i=1..k 1/i. A2387

T(n,m) = number of 1..m integer arrays v[1..n] of length n with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..n-1. A171275

Sum of composite numbers between successive primes. A54265

Numbers that are sums of 2 distinct positive cubes. A24670

Inverse Moebius transform of triangular numbers. A7437

Least k such that H(k) >= n, where H(k) is the harmonic number ∑_i=1..k 1/i. A4080

Triangular array T read by rows: T(n,0)=T(n,n)=1 for n >= 0; T(2,1)=2; for n >= 3 and 1<=k<=n-1, T(n,k) = T(n-1,k-1) + T(n-2,k-1) + T(n-1,k) if 1<=k<=(n-1)/2, else T(n,k) = T(n-1,k-1) + T(n-1,k). A26769

Numbers n such that Bernoulli number B_n has denominator 798. A272138

Triangle T(n,k) of n X n binary matrices with k=0..n² ones under action of dihedral group of the square D₄. A54252

Numbers k such that the geometric mean of φ(k) and σ(k) is an integer. A11257