Search a number
-
+
3180109 = 13192411
BaseRepresentation
bin1100001000011001001101
312222120021211
430020121031
51303230414
6152054421
736013312
oct14103115
95876254
103180109
111882299
121094411
1387462a
145cad09
1542c3c4
hex30864d

3180109 has 4 divisors (see below), whose sum is σ = 3183840. Its totient is φ = 3176380.

The previous prime is 3180103. The next prime is 3180131. The reversal of 3180109 is 9010813.

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 3180109 - 23 = 3180101 is a prime.

It is a super-2 number, since 2×31801092 = 20226186503762, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3180109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3180101) 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, 114 + ... + 2524.

It is an arithmetic number, because the mean of its divisors is an integer number (795960).

Almost surely, 23180109 is an apocalyptic number.

It is an amenable number.

3180109 is a deficient number, since it is larger than the sum of its proper divisors (3731).

3180109 is a wasteful number, since it uses less digits than its factorization.

3180109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 3180109 is about 1783.2860118332. The cubic root of 3180109 is about 147.0552956550.

The spelling of 3180109 in words is "three million, one hundred eighty thousand, one hundred nine".

Divisors: 1 1319 2411 3180109