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212719937 is a prime number
BaseRepresentation
bin11001010110111…
…01100101000001
3112211021021220012
430223131211001
5413424014222
633035154305
75162042513
oct1453354501
9484237805
10212719937
11aa090701
125b2a5995
13350bbbb1
1420373bb3
1513a1d1e2
hexcadd941

212719937 has 2 divisors, whose sum is σ = 212719938. Its totient is φ = 212719936.

The previous prime is 212719867. The next prime is 212719951. The reversal of 212719937 is 739917212.

212719937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210859441 + 1860496 = 14521^2 + 1364^2 .

It is a cyclic number.

It is not a de Polignac number, because 212719937 - 28 = 212719681 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 212719894 and 212719903.

It is not a weakly prime, because it can be changed into another prime (212719967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106359968 + 106359969.

It is an arithmetic number, because the mean of its divisors is an integer number (106359969).

Almost surely, 2212719937 is an apocalyptic number.

It is an amenable number.

212719937 is a deficient number, since it is larger than the sum of its proper divisors (1).

212719937 is an equidigital number, since it uses as much as digits as its factorization.

212719937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 41.

The square root of 212719937 is about 14584.9215630390. The cubic root of 212719937 is about 596.9474003602.

The spelling of 212719937 in words is "two hundred twelve million, seven hundred nineteen thousand, nine hundred thirty-seven".