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12528036 = 2232348001
BaseRepresentation
bin101111110010…
…100110100100
3212120111020100
4233302212210
511201344121
61124304100
7211325613
oct57624644
925514210
1012528036
117087554
124242030
132798451
14194187a
151177026
hexbf29a4

12528036 has 18 divisors (see below), whose sum is σ = 31668182. Its totient is φ = 4176000.

The previous prime is 12527987. The next prime is 12528037. The reversal of 12528036 is 63082521.

It can be written as a sum of positive squares in only one way, i.e., 12320100 + 207936 = 3510^2 + 456^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173965 + ... + 174036.

Almost surely, 212528036 is an apocalyptic number.

It is an amenable number.

12528036 is an abundant number, since it is smaller than the sum of its proper divisors (19140146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12528036 is a wasteful number, since it uses less digits than its factorization.

12528036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348011 (or 348006 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 12528036 is about 3539.4965743733. The cubic root of 12528036 is about 232.2528209016.

It can be divided in two parts, 125280 and 36, that added together give a square (125316 = 3542).

The spelling of 12528036 in words is "twelve million, five hundred twenty-eight thousand, thirty-six".

Divisors: 1 2 3 4 6 9 12 18 36 348001 696002 1044003 1392004 2088006 3132009 4176012 6264018 12528036