Search a number
-
+
3180989 = 71726731
BaseRepresentation
bin1100001000100110111101
312222121111102
430020212331
51303242424
6152102445
736016010
oct14104675
95877442
103180989
111882a19
121094a25
13874b56
145cb377
1542c7ae
hex3089bd

3180989 has 8 divisors (see below), whose sum is σ = 3849408. Its totient is φ = 2566080.

The previous prime is 3180979. The next prime is 3180997. The reversal of 3180989 is 9890813.

3180989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3180989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3180929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13247 + ... + 13484.

It is an arithmetic number, because the mean of its divisors is an integer number (481176).

Almost surely, 23180989 is an apocalyptic number.

It is an amenable number.

3180989 is a deficient number, since it is larger than the sum of its proper divisors (668419).

3180989 is a wasteful number, since it uses less digits than its factorization.

3180989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26755.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 3180989 is about 1783.5327302856. The cubic root of 3180989 is about 147.0688587881.

The spelling of 3180989 in words is "three million, one hundred eighty thousand, nine hundred eighty-nine".

Divisors: 1 7 17 119 26731 187117 454427 3180989