Search a number
-
+
109078349 = 211516959
BaseRepresentation
bin1101000000001…
…10011101001101
321121020202100212
412200012131031
5210411001344
614453532205
72463102452
oct640063515
9247222325
10109078349
11566321a6
1230644065
13197a1a03
14106b5829
15989979e
hex680674d

109078349 has 4 divisors (see below), whose sum is σ = 109595520. Its totient is φ = 108561180.

The previous prime is 109078337. The next prime is 109078363. The reversal of 109078349 is 943870901.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 109078349 - 224 = 92301133 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109078369) 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, 258269 + ... + 258690.

It is an arithmetic number, because the mean of its divisors is an integer number (27398880).

Almost surely, 2109078349 is an apocalyptic number.

It is an amenable number.

109078349 is a deficient number, since it is larger than the sum of its proper divisors (517171).

109078349 is an equidigital number, since it uses as much as digits as its factorization.

109078349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517170.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 109078349 is about 10444.0580714586. The cubic root of 109078349 is about 477.8000438735.

The spelling of 109078349 in words is "one hundred nine million, seventy-eight thousand, three hundred forty-nine".

Divisors: 1 211 516959 109078349