212 (number)

← 211 212 213 →
← 210 211 212 213 214 215 216 217 218 219 → List of numbers ; Integers ; ← 0 100 200 300 400 500 600 700 800 900 →
Cardinal	two hundred twelve
Ordinal	212th; (two hundred twelfth)
Factorization	22 × 53
Greek numeral	ΣΙΒ´
Roman numeral	CCXII, ccxii
Binary	110101002
Ternary	212123
Senary	5526
Octal	3248
Duodecimal	15812
Hexadecimal	D416

Last updated April 14, 2025

212 (two hundred [and] twelve) is the natural number following 211 and preceding 213. It is an even composite integer.

In mathematics

$212=2^{2}\times 53$ ^[1]
Sum for the first 26 totient integers ^[2]
The smallest, even, 3-digit-integer where ${\textstyle {\frac {XYZ}{{\bigl (}X\times Y\times Z{\bigr )}}}}$ is also a prime number ^[3]^[4]

References

↑ https://www.wolframalpha.com/input?i=%282%5E2%29*53
↑ "A000010 - OEIS". oeis.org. Retrieved 2025-02-06.
↑ https://www.wolframalpha.com/input?i=212%2F%282*1*2%29
↑ Caldwell, Chris K. "Prime Curios! 53". t5k.org. Retrieved 2025-02-06.

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[1] ttps://www.wolframalpha.com/input?i=%282%5E2%29*53

[2] "A000010 - OEIS". oeis.org. Retrieved 2025-02-06.

[3] ttps://www.wolframalpha.com/input?i=212%2F%282*1*2%29

[4] Caldwell, Chris K. "Prime Curios! 53". t5k.org. Retrieved 2025-02-06.

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