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12958328 = 231619791
BaseRepresentation
bin110001011011…
…101001111000
3220101100111002
4301123221320
511304131303
61141424132
7215100245
oct61335170
926340432
1012958328
117350869
12440b048
1328b9266
141a145cc
15120e788
hexc5ba78

12958328 has 8 divisors (see below), whose sum is σ = 24296880. Its totient is φ = 6479160.

The previous prime is 12958321. The next prime is 12958339. The reversal of 12958328 is 82385921.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 12958291 and 12958300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12958321) 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 as a sum of consecutive naturals, namely, 809888 + ... + 809903.

It is an arithmetic number, because the mean of its divisors is an integer number (3037110).

Almost surely, 212958328 is an apocalyptic number.

It is an amenable number.

12958328 is a deficient number, since it is larger than the sum of its proper divisors (11338552).

12958328 is a wasteful number, since it uses less digits than its factorization.

12958328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619797 (or 1619793 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 12958328 is about 3599.7677702874. The cubic root of 12958328 is about 234.8819567106.

The spelling of 12958328 in words is "twelve million, nine hundred fifty-eight thousand, three hundred twenty-eight".

Divisors: 1 2 4 8 1619791 3239582 6479164 12958328