170 = 1 × 23 + 4 + 56 + 78 + 9
170 = 98 + 7 × 6 + 5 + 4 × 3 × 2 + 1
170 = 0^4 − 1^6 − 2^8 − 3^9 + 4^7 + 5^5 + 6^0 + 7^1 + 8^3 + 9^2
170 = 1^2 + 13^2 = 7^2 + 11^2
170 divides 69^2 - 1.
170 = (11 + 1 + 1)(1+1) + 1
170 = 2 × 2 × (2 × 22 − 2) + 2
170 = 3 + (3 × 333 + 3)/(3 + 3)
170 = 4 × 44 − 4 − (4 + 4)/4
170 = 5 × (5 × 5 + 5 + 5) − 5
170 = 66 − 6 + (666 − 6)/6
170 = 7 × 7 − 7 + ((7 + 7)/7)7
170 = (8 + 8 + 8/8) × (88 − 8)/8
170 = 9 × (9 + 9) + 9 − 9/9
Sphenic number: Product of 3 distinct Primes, (List)
Number k such that (11*10^k + 19)/3 is prime
Numbers of edges of regular polygon constructible with unmarked straightedge and compass.
Factors: 1, 2, 5, 10, 17, 34, 85, 170
One hundred seventy
Representations, Binary to Hexadecimal:
10101010_2
20022_3
2222_4
1140_5
442_6
332_7
252_8
208_9
145_11
122_12
101_13
c2_14
b5_15
aa_16
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Undergraduate Texts in Mathematics
Graduate Studies in Mathematics

