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12013502 = 26789653
BaseRepresentation
bin101101110100…
…111110111110
3211121100102112
4231310332332
511033413002
61105254022
7204053534
oct55647676
924540375
1012013502
116865a16
124034312
1326481a7
14184a154
1510c4852
hexb74fbe

12013502 has 8 divisors (see below), whose sum is σ = 18289416. Its totient is φ = 5917032.

The previous prime is 12013501. The next prime is 12013517. The reversal of 12013502 is 20531021.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44693 + ... + 44960.

It is an arithmetic number, because the mean of its divisors is an integer number (2286177).

Almost surely, 212013502 is an apocalyptic number.

12013502 is a deficient number, since it is larger than the sum of its proper divisors (6275914).

12013502 is an equidigital number, since it uses as much as digits as its factorization.

12013502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89722.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 12013502 is about 3466.0499130855. The cubic root of 12013502 is about 229.0286826134.

Adding to 12013502 its reverse (20531021), we get a palindrome (32544523).

The spelling of 12013502 in words is "twelve million, thirteen thousand, five hundred two".

Divisors: 1 2 67 134 89653 179306 6006751 12013502