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109393 = 139787
BaseRepresentation
bin11010101101010001
312120001121
4122231101
512000033
62202241
7633634
oct325521
9176047
10109393
1175209
1253381
133aa3b
142bc1b
152262d
hex1ab51

109393 has 4 divisors (see below), whose sum is σ = 110320. Its totient is φ = 108468.

The previous prime is 109391. The next prime is 109397. The reversal of 109393 is 393901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 109393 - 21 = 109391 is a prime.

It is a Duffinian number.

109393 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (109391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255 + ... + 532.

It is an arithmetic number, because the mean of its divisors is an integer number (27580).

2109393 is an apocalyptic number.

It is an amenable number.

109393 is a deficient number, since it is larger than the sum of its proper divisors (927).

109393 is an equidigital number, since it uses as much as digits as its factorization.

109393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926.

The product of its (nonzero) digits is 729, while the sum is 25.

The square root of 109393 is about 330.7461262056. The cubic root of 109393 is about 47.8259028739.

The spelling of 109393 in words is "one hundred nine thousand, three hundred ninety-three".

Divisors: 1 139 787 109393