Properties of the Number 2070

Two Thousand Seventy

Basics

Value: 2069 → 2070 → 2071

Parity: even

Prime: No

Previous Prime: 2069

Next Prime: 2081

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 × 23

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 23

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100000010110

Octal: 4026

Duodecimal: 1246

Hexadecimal: 816

Square: 4284900

Square Root: 45.4972526643093

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

Oblong (or promic, pronic, or heteromecic) numbers: a(n) = n*(n+1). A2378

a(n) = 2·n*(2·n-1). A2939

The "comma sequence": the lexicographically earliest sequence of positive numbers with the property that the sequence formed by the pairs of digits adjacent to the commas between the terms is the same as the sequence of successive differences between the terms. A121805

Expansion of g.f.: (1+x)/(1-45·x). A170765

a(n) = n*(3·n + 7)/2. A140090

Square array T(n,k) (n >= 1, k >= 0) read by antidiagonals: coordination sequence for root lattice A_n. A103881

Composite numbers such that the square root of the sum of squares of their prime factors (with multiplicity) is an integer. A134605

Numbers m such that there are precisely 20 groups of order m. A298911

Generalized Stirling number triangle of first kind read by rows: T(n, k) = [x^k] ∏_m=1..n (x - m - r), with r = 3. A49459

Largest possible z-value of an integer solution (x,y,z) to 4/n = 1/x + 1/y + 1/z satisfying 0 < x < y < z. The·and y components are in A075245 and A075246. A75247