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12973146 = 232162191
BaseRepresentation
bin110001011111…
…010001011010
3220102002210220
4301133101122
511310120041
61142020510
7215161404
oct61372132
926362726
1012973146
117360a0a
124417736
1328c2c24
141a19b74
151213d66
hexc5f45a

12973146 has 8 divisors (see below), whose sum is σ = 25946304. Its totient is φ = 4324380.

The previous prime is 12973141. The next prime is 12973157. The reversal of 12973146 is 64137921.

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

12973146 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12973141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081090 + ... + 1081101.

It is an arithmetic number, because the mean of its divisors is an integer number (3243288).

Almost surely, 212973146 is an apocalyptic number.

12973146 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.

12973146 is a wasteful number, since it uses less digits than its factorization.

12973146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162196.

The product of its digits is 9072, while the sum is 33.

The square root of 12973146 is about 3601.8253705587. The cubic root of 12973146 is about 234.9714526965.

The spelling of 12973146 in words is "twelve million, nine hundred seventy-three thousand, one hundred forty-six".

Divisors: 1 2 3 6 2162191 4324382 6486573 12973146