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12330420 = 2235205507
BaseRepresentation
bin101111000010…
…010110110100
3212012110011020
4233002112310
511124033140
61120141140
7206543514
oct57022664
925173136
1012330420
116a62033
1241677b0
13272950b
1418cd844
1511386d0
hexbc25b4

12330420 has 24 divisors (see below), whose sum is σ = 34525344. Its totient is φ = 3288096.

The previous prime is 12330419. The next prime is 12330421. The reversal of 12330420 is 2403321.

12330420 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12330419) and next prime (12330421).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12330420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12330421) 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, 102694 + ... + 102813.

It is an arithmetic number, because the mean of its divisors is an integer number (1438556).

Almost surely, 212330420 is an apocalyptic number.

12330420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12330420 is an abundant number, since it is smaller than the sum of its proper divisors (22194924).

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

12330420 is a wasteful number, since it uses less digits than its factorization.

12330420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205519 (or 205517 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 12330420 is about 3511.4697777426. The cubic root of 12330420 is about 231.0251654523.

Adding to 12330420 its reverse (2403321), we get a palindrome (14733741).

The spelling of 12330420 in words is "twelve million, three hundred thirty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 205507 411014 616521 822028 1027535 1233042 2055070 2466084 3082605 4110140 6165210 12330420