427 = 1 + 2 × 3 × 45 + 67 + 89
427 = 9 + 87 + 6 × 54 + 3 × 2 + 1
427 = 0^7 − 1^8 + 2^4 + 3^5 − 4^9 + 5^3 + 6^2 + 7^1 + 8^6 + 9^0
427 = 9^2 + 11^2 + 15^2
4275 = 45 + 265 + 1395 + 2965 + 4125
427 divides 62^2 - 1.
427! + 1 is prime
The ring of integers of the field Q(sqrt(-427)) has class number 2.
Semiprime (Product of 2 Primes)
Factors: 1, 7, 61, 427
Four hundred twenty-seven
Representations, Binary to Hexadecimal:
110101011_2
120211_3
12223_4
3202_5
1551_6
1150_7
653_8
524_9
359_11
2b7_12
26b_13
227_14
1d7_15
1ab_16
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Undergraduate Texts in Mathematics
Graduate Studies in Mathematics

