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13216078 = 215674217
BaseRepresentation
bin110010011010…
…100101001110
3220212110001101
4302122211032
511340403303
61151133314
7220222561
oct62324516
926773041
1013216078
117507487
12451423a
132979685
141a804d8
151260d1d
hexc9a94e

13216078 has 8 divisors (see below), whose sum is σ = 19841472. Its totient is φ = 6602256.

The previous prime is 13216069. The next prime is 13216079. The reversal of 13216078 is 87061231.

13216078 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (13216079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026 + ... + 5242.

It is an arithmetic number, because the mean of its divisors is an integer number (2480184).

Almost surely, 213216078 is an apocalyptic number.

13216078 is a deficient number, since it is larger than the sum of its proper divisors (6625394).

13216078 is a wasteful number, since it uses less digits than its factorization.

13216078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5786.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 13216078 is about 3635.3924134817. The cubic root of 13216078 is about 236.4290648078.

The spelling of 13216078 in words is "thirteen million, two hundred sixteen thousand, seventy-eight".

Divisors: 1 2 1567 3134 4217 8434 6608039 13216078