1213 is a Prime Number, Prime(198)
1213 = 1 + 2 × 34 + 5 + 67 × (8 + 9)
1213 = (9 × 8 + 76 + 54) × 3 × 2 + 1
1213 = 0^6 + 1^8 + 2^9 − 3^7 + 4^5 + 5^1 + 6^4 + 7^2 + 8^3 + 9^0
1213 = 22^2 + 27^2
1213^2 = 245^2 + 1188^2
1213 divides 47^12 - 1.
Prime of form x^2+29*y^2.
Prime p such that (p+1)/2 is prime.
Factors: 1, 1213
One thousand, two hundred thirteen
Representations, Binary to Hexadecimal:
10010111101_2
1122221_3
102331_4
14323_5
5341_6
3352_7
2275_8
1587_9
a03_11
851_12
724_13
629_14
55d_15
4bd_16
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Undergraduate Texts in Mathematics
Graduate Studies in Mathematics

