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12528027 = 34154667
BaseRepresentation
bin101111110010…
…100110011011
3212120111020000
4233302212123
511201344102
61124304043
7211325601
oct57624633
925514200
1012528027
117087546
124242023
132798445
141941871
15117701c
hexbf299b

12528027 has 10 divisors (see below), whose sum is σ = 18714828. Its totient is φ = 8351964.

The previous prime is 12527987. The next prime is 12528037. The reversal of 12528027 is 72082521.

It is not a de Polignac number, because 12528027 - 210 = 12527003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12528037) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 77253 + ... + 77414.

Almost surely, 212528027 is an apocalyptic number.

12528027 is a deficient number, since it is larger than the sum of its proper divisors (6186801).

12528027 is an equidigital number, since it uses as much as digits as its factorization.

12528027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154679 (or 154670 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 12528027 is about 3539.4953030058. The cubic root of 12528027 is about 232.2527652857.

The spelling of 12528027 in words is "twelve million, five hundred twenty-eight thousand, twenty-seven".

Divisors: 1 3 9 27 81 154667 464001 1392003 4176009 12528027