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12028623 = 319720353
BaseRepresentation
bin101101111000…
…101011001111
3211122010011120
4231320223033
511034403443
61105452023
7204145605
oct55705317
924563146
1012028623
116876312
124041013
132652039
141851875
1510c9083
hexb78acf

12028623 has 8 divisors (see below), whose sum is σ = 16120368. Its totient is φ = 7977984.

The previous prime is 12028603. The next prime is 12028637. The reversal of 12028623 is 32682021.

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

It is not a de Polignac number, because 12028623 - 26 = 12028559 is a prime.

It is a super-2 number, since 2×120286232 = 289375542552258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12028593 and 12028602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12028603) 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, 9586 + ... + 10767.

It is an arithmetic number, because the mean of its divisors is an integer number (2015046).

Almost surely, 212028623 is an apocalyptic number.

12028623 is a deficient number, since it is larger than the sum of its proper divisors (4091745).

12028623 is a wasteful number, since it uses less digits than its factorization.

12028623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20553.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 12028623 is about 3468.2305286702. The cubic root of 12028623 is about 229.1247326173.

The spelling of 12028623 in words is "twelve million, twenty-eight thousand, six hundred twenty-three".

Divisors: 1 3 197 591 20353 61059 4009541 12028623