1978 = 1 + 23 + 4 + 5 × 6 × (7 × 8 + 9
1978 = 98 × 7 + 6 × 5 × 43 + 2 × 1
1978 = 0^6 + 1^9 + 2^7 − 3^8 + 4^4 + 5^2 + 6^5 + 7^3 + 8^0 + 9^1
1978 divides 93^6 - 1.
a(n) = n*(n+3), n = 43
Sphenic number: Product of 3 distinct Primes, (List)
Factors: 1, 2, 23, 43, 46, 86, 989, 1978
One thousand, nine hundred seventy-eight
Representations, Binary to Hexadecimal:
11110111010_2
2201021_3
132322_4
30403_5
13054_6
5524_7
3672_8
2637_9
1539_11
118a_12
b92_13
a14_14
8bd_15
7ba_16
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Undergraduate Texts in Mathematics
Graduate Studies in Mathematics

