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12028497 = 313308423
BaseRepresentation
bin101101111000…
…101001010001
3211122002222220
4231320221101
511034402442
61105451253
7204145335
oct55705121
924562886
1012028497
116876208
124040b29
132651c70
1418517c5
1510c8eec
hexb78a51

12028497 has 8 divisors (see below), whose sum is σ = 17271744. Its totient is φ = 7402128.

The previous prime is 12028493. The next prime is 12028531. The reversal of 12028497 is 79482021.

It is a happy number.

12028497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12028497 - 22 = 12028493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12028493) 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, 154173 + ... + 154250.

It is an arithmetic number, because the mean of its divisors is an integer number (2158968).

Almost surely, 212028497 is an apocalyptic number.

It is an amenable number.

12028497 is a deficient number, since it is larger than the sum of its proper divisors (5243247).

12028497 is a wasteful number, since it uses less digits than its factorization.

12028497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308439.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 12028497 is about 3468.2123637401. The cubic root of 12028497 is about 229.1239325863.

The spelling of 12028497 in words is "twelve million, twenty-eight thousand, four hundred ninety-seven".

Divisors: 1 3 13 39 308423 925269 4009499 12028497