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212073097 is a prime number
BaseRepresentation
bin11001010001111…
…11101010001001
3112210001102121011
430220333222021
5413242314342
633013243521
75153406625
oct1450775211
9483042534
10212073097
11a9789725
125b0335a1
1334c23652
1420246185
1513941717
hexca3fa89

212073097 has 2 divisors, whose sum is σ = 212073098. Its totient is φ = 212073096.

The previous prime is 212073091. The next prime is 212073101. The reversal of 212073097 is 790370212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145829776 + 66243321 = 12076^2 + 8139^2 .

It is a cyclic number.

It is not a de Polignac number, because 212073097 - 215 = 212040329 is a prime.

It is not a weakly prime, because it can be changed into another prime (212073091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106036548 + 106036549.

It is an arithmetic number, because the mean of its divisors is an integer number (106036549).

Almost surely, 2212073097 is an apocalyptic number.

It is an amenable number.

212073097 is a deficient number, since it is larger than the sum of its proper divisors (1).

212073097 is an equidigital number, since it uses as much as digits as its factorization.

212073097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 212073097 is about 14562.7297235099. The cubic root of 212073097 is about 596.3417190029.

The spelling of 212073097 in words is "two hundred twelve million, seventy-three thousand, ninety-seven".