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15382109 is a prime number
BaseRepresentation
bin111010101011…
…011001011101
31001221111021202
4322223121131
512414211414
61305405245
7244513541
oct72533135
931844252
1015382109
118756896
125199825
133257552
142085a21
15153c9de
hexeab65d

15382109 has 2 divisors, whose sum is σ = 15382110. Its totient is φ = 15382108.

The previous prime is 15382099. The next prime is 15382181. The reversal of 15382109 is 90128351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15382084 + 25 = 3922^2 + 5^2 .

It is an emirp because it is prime and its reverse (90128351) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15382109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11382109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7691054 + 7691055.

It is an arithmetic number, because the mean of its divisors is an integer number (7691055).

Almost surely, 215382109 is an apocalyptic number.

It is an amenable number.

15382109 is a deficient number, since it is larger than the sum of its proper divisors (1).

15382109 is an equidigital number, since it uses as much as digits as its factorization.

15382109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 15382109 is about 3922.0031871481. The cubic root of 15382109 is about 248.6978103181.

The spelling of 15382109 in words is "fifteen million, three hundred eighty-two thousand, one hundred nine".