270 = 123 + 4 + 56 + 78 + 9
270 = 98 + 7 + 6 × (5 + 4) × 3 + 2 + 1
270 = 0^0 + 1^8 + 2^7 − 3^9 + 4^5 + 5^6 + 6^2 + 7^4 + 8^1 + 9^3
270 divides 91^3 - 1.
Abundant number (sum of divisors of m exceeds 2m)
3x 270^9-1 and 3x270^9+1 are Prime Numbers
270 is the smallest number such that it has divisors ending with every decimal digit, i.e., divisors ending in 0,1,2,3,4,5,6,7,8 and 9
a(n) = n*(n+3), n = 15
a(n) = 3*n*(n + 3)/2. (n = 12)
Factors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270
Two hundred seventy
Representations, Binary to Hexadecimal:
100001110_2
101000_3
10032_4
2040_5
1130_6
534_7
416_8
330_9
226_11
1a6_12
17a_13
154_14
130_15
10e_16
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