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30790229 is a prime number
BaseRepresentation
bin111010101110…
…1001001010101
32010221022020212
41311131021111
530340241404
63015535205
7522466301
oct165351125
963838225
1030790229
1116420178
12a38a505
1364c0892
144136d01
152a8306e
hex1d5d255

30790229 has 2 divisors, whose sum is σ = 30790230. Its totient is φ = 30790228.

The previous prime is 30790219. The next prime is 30790267. The reversal of 30790229 is 92209703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25959025 + 4831204 = 5095^2 + 2198^2 .

It is a cyclic number.

It is not a de Polignac number, because 30790229 - 28 = 30789973 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30790195 and 30790204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30790219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15395114 + 15395115.

It is an arithmetic number, because the mean of its divisors is an integer number (15395115).

Almost surely, 230790229 is an apocalyptic number.

It is an amenable number.

30790229 is a deficient number, since it is larger than the sum of its proper divisors (1).

30790229 is an equidigital number, since it uses as much as digits as its factorization.

30790229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 30790229 is about 5548.8943943816. The cubic root of 30790229 is about 313.4278904549.

The spelling of 30790229 in words is "thirty million, seven hundred ninety thousand, two hundred twenty-nine".