Search a number
-
+
13122678 = 232187113
BaseRepresentation
bin110010000011…
…110001110110
3220200200221010
4302003301312
511324411203
61145133050
7216353352
oct62036166
926620833
1013122678
117453298
12448a186
132945cca
141a58462
151243303
hexc83c76

13122678 has 8 divisors (see below), whose sum is σ = 26245368. Its totient is φ = 4374224.

The previous prime is 13122671. The next prime is 13122689. The reversal of 13122678 is 87622131.

13122678 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.

13122678 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122671) 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, 1093551 + ... + 1093562.

It is an arithmetic number, because the mean of its divisors is an integer number (3280671).

Almost surely, 213122678 is an apocalyptic number.

13122678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13122678 is a wasteful number, since it uses less digits than its factorization.

13122678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187118.

The product of its digits is 4032, while the sum is 30.

The square root of 13122678 is about 3622.5237059266. The cubic root of 13122678 is about 235.8707877377.

The spelling of 13122678 in words is "thirteen million, one hundred twenty-two thousand, six hundred seventy-eight".

Divisors: 1 2 3 6 2187113 4374226 6561339 13122678