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12331430 = 251233143
BaseRepresentation
bin101111000010…
…100110100110
3212012111112122
4233002212212
511124101210
61120145542
7206546456
oct57024646
925174478
1012331430
116a62871
1241682b2
132729b07
1418cdd66
151138b55
hexbc29a6

12331430 has 8 divisors (see below), whose sum is σ = 22196592. Its totient is φ = 4932568.

The previous prime is 12331391. The next prime is 12331441. The reversal of 12331430 is 3413321.

It is a happy number.

12331430 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 junction number, because it is equal to n+sod(n) for n = 12331399 and 12331408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616562 + ... + 616581.

It is an arithmetic number, because the mean of its divisors is an integer number (2774574).

Almost surely, 212331430 is an apocalyptic number.

12331430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12331430 is a deficient number, since it is larger than the sum of its proper divisors (9865162).

12331430 is a wasteful number, since it uses less digits than its factorization.

12331430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233150.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 12331430 is about 3511.6135892208. The cubic root of 12331430 is about 231.0314731328.

Adding to 12331430 its reverse (3413321), we get a palindrome (15744751).

The spelling of 12331430 in words is "twelve million, three hundred thirty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 1233143 2466286 6165715 12331430