Search a number
-
+
3128826 = 23521471
BaseRepresentation
bin1011111011110111111010
312212221221110
423323313322
51300110301
6151021150
735410641
oct13736772
95787843
103128826
111847808
12106a7b6
1385719c
145b6358
1541c0d6
hex2fbdfa

3128826 has 8 divisors (see below), whose sum is σ = 6257664. Its totient is φ = 1042940.

The previous prime is 3128821. The next prime is 3128843. The reversal of 3128826 is 6288213.

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

3128826 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3128793 and 3128802.

It is not an unprimeable number, because it can be changed into a prime (3128821) 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 3 ways as a sum of consecutive naturals, for example, 260730 + ... + 260741.

It is an arithmetic number, because the mean of its divisors is an integer number (782208).

Almost surely, 23128826 is an apocalyptic number.

3128826 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3128826 is a wasteful number, since it uses less digits than its factorization.

3128826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521476.

The product of its digits is 4608, while the sum is 30.

The square root of 3128826 is about 1768.8487781605. The cubic root of 3128826 is about 146.2605281339.

The spelling of 3128826 in words is "three million, one hundred twenty-eight thousand, eight hundred twenty-six".

Divisors: 1 2 3 6 521471 1042942 1564413 3128826