Search a number
-
+
109207 = 715601
BaseRepresentation
bin11010101010010111
312112210201
4122222113
511443312
62201331
7633250
oct325227
9175721
10109207
117505a
1253247
133a927
142bb27
1522557
hex1aa97

109207 has 4 divisors (see below), whose sum is σ = 124816. Its totient is φ = 93600.

The previous prime is 109201. The next prime is 109211. The reversal of 109207 is 702901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 702901 = 5711231.

It is a cyclic number.

It is not a de Polignac number, because 109207 - 23 = 109199 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109201) 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, 7794 + ... + 7807.

It is an arithmetic number, because the mean of its divisors is an integer number (31204).

2109207 is an apocalyptic number.

109207 is a deficient number, since it is larger than the sum of its proper divisors (15609).

109207 is an equidigital number, since it uses as much as digits as its factorization.

109207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15608.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 109207 is about 330.4648241493. The cubic root of 109207 is about 47.7987815029.

The spelling of 109207 in words is "one hundred nine thousand, two hundred seven".

Divisors: 1 7 15601 109207