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BaseRepresentation
bin1011101111101101
32102222211
423233231
53014414
61010421
7260155
oct135755
972884
1048109
1133166
1223a11
1318b89
1413765
15e3c4
hexbbed

48109 has 2 divisors, whose sum is σ = 48110. Its totient is φ = 48108.

The previous prime is 48091. The next prime is 48119. The reversal of 48109 is 90184.

Together with previous prime (48091) 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., 42025 + 6084 = 205^2 + 78^2 .

It is a cyclic number.

It is not a de Polignac number, because 48109 - 27 = 47981 is a prime.

It is equal to p4954 and since 48109 and 4954 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 48109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24054 + 24055.

It is an arithmetic number, because the mean of its divisors is an integer number (24055).

248109 is an apocalyptic number.

It is an amenable number.

48109 is a deficient number, since it is larger than the sum of its proper divisors (1).

48109 is an equidigital number, since it uses as much as digits as its factorization.

48109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 48109 is about 219.3376392688. The cubic root of 48109 is about 36.3699002467.

The spelling of 48109 in words is "forty-eight thousand, one hundred nine".