Search a number
-
+
3020831 = 11475843
BaseRepresentation
bin1011100001100000011111
312200110210122
423201200133
51233131311
6144425155
734451042
oct13414037
95613718
103020831
111783660
1210181bb
13819c98
14588c59
153ea0db
hex2e181f

3020831 has 8 divisors (see below), whose sum is σ = 3366144. Its totient is φ = 2687320.

The previous prime is 3020827. The next prime is 3020833. The reversal of 3020831 is 1380203.

3020831 = 3602 + 3612 + ... + 3812.

3020831 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 not a de Polignac number, because 3020831 - 22 = 3020827 is a prime.

It is a super-2 number, since 2×30208312 = 18250839861122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020833) 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, 2405 + ... + 3438.

It is an arithmetic number, because the mean of its divisors is an integer number (420768).

Almost surely, 23020831 is an apocalyptic number.

3020831 is a deficient number, since it is larger than the sum of its proper divisors (345313).

3020831 is a wasteful number, since it uses less digits than its factorization.

3020831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5901.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3020831 is about 1738.0537966358. The cubic root of 3020831 is about 144.5580040358.

The spelling of 3020831 in words is "three million, twenty thousand, eight hundred thirty-one".

Divisors: 1 11 47 517 5843 64273 274621 3020831