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13018146 = 232169691
BaseRepresentation
bin110001101010…
…010000100010
3220111101112120
4301222100202
511313040041
61143005110
7215436531
oct61522042
926441476
1013018146
1173917a9
124439796
13290a55b
141a2c318
151222366
hexc6a422

13018146 has 8 divisors (see below), whose sum is σ = 26036304. Its totient is φ = 4339380.

The previous prime is 13018139. The next prime is 13018153. The reversal of 13018146 is 64181031.

It is an interprime number because it is at equal distance from previous prime (13018139) and next prime (13018153).

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

13018146 is an admirable number.

It is a Curzon number.

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1084840 + ... + 1084851.

It is an arithmetic number, because the mean of its divisors is an integer number (3254538).

Almost surely, 213018146 is an apocalyptic number.

13018146 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.

13018146 is a wasteful number, since it uses less digits than its factorization.

13018146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169696.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 13018146 is about 3608.0667953906. The cubic root of 13018146 is about 235.2428212908.

Adding to 13018146 its reverse (64181031), we get a palindrome (77199177).

The spelling of 13018146 in words is "thirteen million, eighteen thousand, one hundred forty-six".

Divisors: 1 2 3 6 2169691 4339382 6509073 13018146