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12903942 = 232150657
BaseRepresentation
bin110001001110…
…011000000110
3220021120212210
4301032120012
511300411232
61140324250
7214452552
oct61163006
926246783
1012903942
117313a17
1243a3686
13289a58c
1419dc862
1511ed5cc
hexc4e606

12903942 has 8 divisors (see below), whose sum is σ = 25807896. Its totient is φ = 4301312.

The previous prime is 12903941. The next prime is 12903959. The reversal of 12903942 is 24930921.

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

12903942 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12903941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075323 + ... + 1075334.

It is an arithmetic number, because the mean of its divisors is an integer number (3225987).

Almost surely, 212903942 is an apocalyptic number.

12903942 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.

12903942 is a wasteful number, since it uses less digits than its factorization.

12903942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150662.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 12903942 is about 3592.2057290751. The cubic root of 12903942 is about 234.5528966888.

The spelling of 12903942 in words is "twelve million, nine hundred three thousand, nine hundred forty-two".

Divisors: 1 2 3 6 2150657 4301314 6451971 12903942