Properties of the Number -102102

One Hundred Two Thousand One Hundred Two

Basics

Value: -102103 → -102102 → -102101

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 6

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 7 × 11 × 13 × 17

Divisors: 1, 2, 3, 6, 7, 11, 13, 14, 17, 21

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4938 Try Today's Challenge

Representations

Binary: -11000111011010110

Octal: -307326

Duodecimal: -4B106

Hexadecimal: -18ed6

Square: 10424818404

Square Root: 319.53403574580284

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

a(n) = (-1)ⁿ*(2·n - 1)*CatalanNumber(n - 2) for n >= 2, a(n) = n for n = 0, 1. A78718

Products of exactly 6 distinct primes. A67885

a(n) = T(n, n-4), T given by A026519. Also a(n) = number of integer strings s(0), ..., s(n), counted by T, such that s(n) = 4. A26524

Numbers k such that 3^k + 10 is prime. A217137

Numbers with six distinct prime divisors. A74969

Largest number that can be encoded as ∏_i:λ prime(i) for a partition λ of n into distinct parts. A246868

Triangle read by rows: T(n,k) = A002110(n)/prime(n+1-k), k = 1..n. A77011

Numbers k such that k³ - 1 and k³ + 1 are both semiprimes. A268043

Ternary numbers that are concatenated runs A(1)B(1)C(1)A(2)B(2)C(2)...A(k)B(k)C(k), where A(i) is a run of 1's, B(i) a run of 0's, and C(i) a run of 2's, for i = 1..k. A371105

a(n) = product of prohibited prime factors of A090252(n). A355057