Search a number
-
+
3139423 = 7541829
BaseRepresentation
bin1011111110011101011111
312220111110221
423332131133
51300430143
6151142211
735453560
oct13763537
95814427
103139423
111854771
121074967
1385bc61
145ba167
154202ed
hex2fe75f

3139423 has 8 divisors (see below), whose sum is σ = 3598880. Its totient is φ = 2682720.

The previous prime is 3139421. The next prime is 3139447. The reversal of 3139423 is 3249313.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3139423 - 21 = 3139421 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 (3139421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3373 + ... + 4201.

It is an arithmetic number, because the mean of its divisors is an integer number (449860).

Almost surely, 23139423 is an apocalyptic number.

3139423 is a deficient number, since it is larger than the sum of its proper divisors (459457).

3139423 is an equidigital number, since it uses as much as digits as its factorization.

3139423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377.

The product of its digits is 1944, while the sum is 25.

The square root of 3139423 is about 1771.8416972179. The cubic root of 3139423 is about 146.4254650031.

The spelling of 3139423 in words is "three million, one hundred thirty-nine thousand, four hundred twenty-three".

Divisors: 1 7 541 829 3787 5803 448489 3139423