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30232109 is a prime number
BaseRepresentation
bin111001101010…
…0111000101101
32002212221122202
41303110320231
530214411414
62555551245
7514653155
oct163247055
962787582
1030232109
1116079916
12a15b525
13635682b
14402d765
1529c29de
hex1cd4e2d

30232109 has 2 divisors, whose sum is σ = 30232110. Its totient is φ = 30232108.

The previous prime is 30232091. The next prime is 30232121. The reversal of 30232109 is 90123203.

Together with previous prime (30232091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21949225 + 8282884 = 4685^2 + 2878^2 .

It is a cyclic number.

It is not a de Polignac number, because 30232109 - 220 = 29183533 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30232159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15116054 + 15116055.

It is an arithmetic number, because the mean of its divisors is an integer number (15116055).

Almost surely, 230232109 is an apocalyptic number.

It is an amenable number.

30232109 is a deficient number, since it is larger than the sum of its proper divisors (1).

30232109 is an equidigital number, since it uses as much as digits as its factorization.

30232109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 30232109 is about 5498.3733048966. The cubic root of 30232109 is about 311.5225445664.

The spelling of 30232109 in words is "thirty million, two hundred thirty-two thousand, one hundred nine".