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30332020 = 22510311471
BaseRepresentation
bin111001110110…
…1010001110100
32010002000201011
41303231101310
530231111040
63002042004
7515550355
oct163552164
963060634
1030332020
1116137994
12a1a9304
136390154
144057d2c
1529e23ea
hex1ced474

30332020 has 24 divisors (see below), whose sum is σ = 63802368. Its totient is φ = 12112800.

The previous prime is 30331993. The next prime is 30332021. The reversal of 30332020 is 2023303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30332021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19885 + ... + 21355.

It is an arithmetic number, because the mean of its divisors is an integer number (2658432).

Almost surely, 230332020 is an apocalyptic number.

It is an amenable number.

30332020 is an abundant number, since it is smaller than the sum of its proper divisors (33470348).

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

30332020 is a wasteful number, since it uses less digits than its factorization.

30332020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511 (or 2509 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 13.

The square root of 30332020 is about 5507.4513161716. The cubic root of 30332020 is about 311.8653402014.

Adding to 30332020 its reverse (2023303), we get a palindrome (32355323).

It can be divided in two parts, 303 and 32020, that added together give a palindrome (32323).

The spelling of 30332020 in words is "thirty million, three hundred thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 1031 1471 2062 2942 4124 5155 5884 7355 10310 14710 20620 29420 1516601 3033202 6066404 7583005 15166010 30332020