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13143045 = 35876203
BaseRepresentation
bin110010001000…
…110000000101
3220201201212110
4302020300011
511331034140
61145411233
7216466626
oct62106005
926651773
1013143045
117467623
124499b19
132952366
141a61a4d
151249380
hexc88c05

13143045 has 8 divisors (see below), whose sum is σ = 21028896. Its totient is φ = 7009616.

The previous prime is 13143043. The next prime is 13143059. The reversal of 13143045 is 54034131.

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

It is a cyclic number.

It is not a de Polignac number, because 13143045 - 21 = 13143043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143043) 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, 438087 + ... + 438116.

It is an arithmetic number, because the mean of its divisors is an integer number (2628612).

Almost surely, 213143045 is an apocalyptic number.

13143045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13143045 is a deficient number, since it is larger than the sum of its proper divisors (7885851).

13143045 is an equidigital number, since it uses as much as digits as its factorization.

13143045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876211.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 13143045 is about 3625.3337777369. Note that the first 3 decimals coincide. The cubic root of 13143045 is about 235.9927520995.

Adding to 13143045 its reverse (54034131), we get a palindrome (67177176).

The spelling of 13143045 in words is "thirteen million, one hundred forty-three thousand, forty-five".

Divisors: 1 3 5 15 876203 2628609 4381015 13143045