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108204149 is a prime number
BaseRepresentation
bin1100111001100…
…01000001110101
321112121100012002
412130301001311
5210200013044
614423105045
72452501664
oct634610165
9245540162
10108204149
1156095419
12302a2185
1319556b31
1410528ddb
15977574e
hex6731075

108204149 has 2 divisors, whose sum is σ = 108204150. Its totient is φ = 108204148.

The previous prime is 108204139. The next prime is 108204163. The reversal of 108204149 is 941402801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77123524 + 31080625 = 8782^2 + 5575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-108204149 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 (108204119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54102074 + 54102075.

It is an arithmetic number, because the mean of its divisors is an integer number (54102075).

Almost surely, 2108204149 is an apocalyptic number.

It is an amenable number.

108204149 is a deficient number, since it is larger than the sum of its proper divisors (1).

108204149 is an equidigital number, since it uses as much as digits as its factorization.

108204149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 108204149 is about 10402.1223315245. The cubic root of 108204149 is about 476.5201881467.

The spelling of 108204149 in words is "one hundred eight million, two hundred four thousand, one hundred forty-nine".