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12928007 = 173492179
BaseRepresentation
bin110001010100…
…010000000111
3220022210220002
4301110100013
511302144012
61141031515
7214612661
oct61242007
926283802
1012928007
117330004
1243b559b
1328a8511
141a07531
1512057c2
hexc54407

12928007 has 8 divisors (see below), whose sum is σ = 13734000. Its totient is φ = 12127104.

The previous prime is 12927989. The next prime is 12928009. The reversal of 12928007 is 70082921.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12928007 - 214 = 12911623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12928009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4844 + ... + 7022.

It is an arithmetic number, because the mean of its divisors is an integer number (1716750).

Almost surely, 212928007 is an apocalyptic number.

12928007 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12928007 is a deficient number, since it is larger than the sum of its proper divisors (805993).

12928007 is a wasteful number, since it uses less digits than its factorization.

12928007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 12928007 is about 3595.5537821037. The cubic root of 12928007 is about 234.6986146977.

The spelling of 12928007 in words is "twelve million, nine hundred twenty-eight thousand, seven".

Divisors: 1 17 349 2179 5933 37043 760471 12928007