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13052145 = 3519411117
BaseRepresentation
bin110001110010…
…100011110001
3220120010011210
4301302203301
511320132040
61143430333
7215640621
oct61624361
926503153
1013052145
1174052a7
1244553a9
13291cb82
141a3a881
15122c480
hexc728f1

13052145 has 32 divisors (see below), whose sum is σ = 22538880. Its totient is φ = 6428160.

The previous prime is 13052131. The next prime is 13052153. The reversal of 13052145 is 54125031.

13052145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13052145 - 25 = 13052113 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11127 + ... + 12243.

It is an arithmetic number, because the mean of its divisors is an integer number (704340).

Almost surely, 213052145 is an apocalyptic number.

13052145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13052145 is a deficient number, since it is larger than the sum of its proper divisors (9486735).

13052145 is a wasteful number, since it uses less digits than its factorization.

13052145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 13052145 is about 3612.7752490295. The cubic root of 13052145 is about 235.4474348626.

Adding to 13052145 its reverse (54125031), we get a palindrome (67177176).

The spelling of 13052145 in words is "thirteen million, fifty-two thousand, one hundred forty-five".

Divisors: 1 3 5 15 19 41 57 95 123 205 285 615 779 1117 2337 3351 3895 5585 11685 16755 21223 45797 63669 106115 137391 228985 318345 686955 870143 2610429 4350715 13052145