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12536081 = 233714731
BaseRepresentation
bin101111110100…
…100100010001
3212120220021022
4233310210101
511202123311
61124405225
7211361225
oct57644421
925526238
1012536081
1170925a8
124246815
13279bccc
141944785
1511795db
hexbf4911

12536081 has 8 divisors (see below), whose sum is σ = 13435584. Its totient is φ = 11666160.

The previous prime is 12536053. The next prime is 12536087. The reversal of 12536081 is 18063521.

12536081 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 a cyclic number.

It is not a de Polignac number, because 12536081 - 214 = 12519697 is a prime.

It is a super-2 number, since 2×125360812 = 314306653677122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 12536081.

It is not an unprimeable number, because it can be changed into a prime (12536087) 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, 6515 + ... + 8216.

It is an arithmetic number, because the mean of its divisors is an integer number (1679448).

Almost surely, 212536081 is an apocalyptic number.

It is an amenable number.

12536081 is a deficient number, since it is larger than the sum of its proper divisors (899503).

12536081 is a wasteful number, since it uses less digits than its factorization.

12536081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14791.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 12536081 is about 3540.6328530363. The cubic root of 12536081 is about 232.3025247321.

The spelling of 12536081 in words is "twelve million, five hundred thirty-six thousand, eighty-one".

Divisors: 1 23 37 851 14731 338813 545047 12536081