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12728301 = 34398669
BaseRepresentation
bin110000100011…
…011111101101
3212221122221120
4300203133231
511224301201
61132451153
7213121515
oct60433755
925848846
1012728301
117203a63
124319ab9
132838651
141994845
1511b6536
hexc237ed

12728301 has 8 divisors (see below), whose sum is σ = 17365920. Its totient is φ = 8288112.

The previous prime is 12728293. The next prime is 12728311. The reversal of 12728301 is 10382721.

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

It is not a de Polignac number, because 12728301 - 23 = 12728293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12728311) 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, 49206 + ... + 49463.

It is an arithmetic number, because the mean of its divisors is an integer number (2170740).

Almost surely, 212728301 is an apocalyptic number.

It is an amenable number.

12728301 is a deficient number, since it is larger than the sum of its proper divisors (4637619).

12728301 is an equidigital number, since it uses as much as digits as its factorization.

12728301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98715.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 12728301 is about 3567.6744526372. The cubic root of 12728301 is about 233.4838319334.

The spelling of 12728301 in words is "twelve million, seven hundred twenty-eight thousand, three hundred one".

Divisors: 1 3 43 129 98669 296007 4242767 12728301