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12838146 = 232139691
BaseRepresentation
bin110000111110…
…010100000010
3220011020121220
4300332110002
511241310041
61135055510
7214056666
oct60762402
926136556
1012838146
117279542
124371596
132876649
1419c28a6
1511d8d66
hexc3e502

12838146 has 8 divisors (see below), whose sum is σ = 25676304. Its totient is φ = 4279380.

The previous prime is 12838141. The next prime is 12838151. The reversal of 12838146 is 64183821.

It is an interprime number because it is at equal distance from previous prime (12838141) and next prime (12838151).

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

12838146 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12838141) 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, 1069840 + ... + 1069851.

It is an arithmetic number, because the mean of its divisors is an integer number (3209538).

Almost surely, 212838146 is an apocalyptic number.

12838146 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.

12838146 is a wasteful number, since it uses less digits than its factorization.

12838146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139696.

The product of its digits is 9216, while the sum is 33.

The square root of 12838146 is about 3583.0358636218. The cubic root of 12838146 is about 234.1535627277.

The spelling of 12838146 in words is "twelve million, eight hundred thirty-eight thousand, one hundred forty-six".

Divisors: 1 2 3 6 2139691 4279382 6419073 12838146