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109288 = 2319719
BaseRepresentation
bin11010101011101000
312112220201
4122223220
511444123
62201544
7633424
oct325350
9175821
10109288
1175123
12532b4
133a98a
142bb84
15225ad
hex1aae8

109288 has 16 divisors (see below), whose sum is σ = 216000. Its totient is φ = 51696.

The previous prime is 109279. The next prime is 109297. The reversal of 109288 is 882901.

It is an interprime number because it is at equal distance from previous prime (109279) and next prime (109297).

It is a plaindrome in base 15.

It is an unprimeable number.

109288 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208 + ... + 511.

It is an arithmetic number, because the mean of its divisors is an integer number (13500).

2109288 is an apocalyptic number.

It is an amenable number.

109288 is a deficient number, since it is larger than the sum of its proper divisors (106712).

109288 is a wasteful number, since it uses less digits than its factorization.

109288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744 (or 740 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 109288 is about 330.5873560801. The cubic root of 109288 is about 47.8105962048.

The spelling of 109288 in words is "one hundred nine thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 19 38 76 152 719 1438 2876 5752 13661 27322 54644 109288