ART

2485 = 5 × 7 × 71

2485 = 1 + 2345 + 67 + 8 × 9

2485 = 9 + (8 × 76 + 5) × 4 + 3 + 21

2485 = 0^5 + 1^8 − 2^7 − 3^9 + 4^3 + 5^6 + 6^2 + 7^0 + 8^1 + 9^4

2485 divides 76^10 - 1 = 6428888932339941375 = 3 × 5^3 × 7 × 11 × 71 × 95231 × 32928901

Second hexagonal number: a(n) = n*(2*n + 1), n = 35

2485 = binomial(70 + 1, 2) is the 70th triangular number.

Sphenic number: Product of 3 distinct Primes, (List)

Factors: 1, 5, 7, 35, 71, 355, 497, 2485

Two thousand, four hundred eighty-five

Representations, Binary to Hexadecimal:

100110110101_2
10102001_3
212311_4
34420_5
15301_6
10150_7
4665_8
3361_9
195a_11
1531_12
1192_13
c97_14
b0a_15
9b5_16

<--- --->

Undergraduate Texts in Mathematics

Graduate Texts in Mathematics

Graduate Studies in Mathematics

Mathematics Encyclopedia

World

Index

Hellenica World - Scientific Library