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13560081 = 329155863
BaseRepresentation
bin110011101110…
…100100010001
3221111220221020
4303232210101
511432410311
61202350053
7223154523
oct63564421
927456836
1013560081
117721987
12465b329
132a6a122
141b2da13
1512ccc06
hexcee911

13560081 has 8 divisors (see below), whose sum is σ = 18703680. Its totient is φ = 8728272.

The previous prime is 13560073. The next prime is 13560083. The reversal of 13560081 is 18006531.

13560081 is digitally balanced in base 2 and base 4, because in such bases 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 not a de Polignac number, because 13560081 - 23 = 13560073 is a prime.

It is a super-2 number, since 2×135600812 = 367751593453122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13560083) 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, 77845 + ... + 78018.

It is an arithmetic number, because the mean of its divisors is an integer number (2337960).

Almost surely, 213560081 is an apocalyptic number.

It is an amenable number.

13560081 is a deficient number, since it is larger than the sum of its proper divisors (5143599).

13560081 is a wasteful number, since it uses less digits than its factorization.

13560081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155895.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 13560081 is about 3682.4015261783. The cubic root of 13560081 is about 238.4628670835.

The spelling of 13560081 in words is "thirteen million, five hundred sixty thousand, eighty-one".

Divisors: 1 3 29 87 155863 467589 4520027 13560081