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13135155 = 351127237
BaseRepresentation
bin110010000110…
…110100110011
3220201100001020
4302012310303
511330311110
61145310523
7216434625
oct62066463
926640036
1013135155
117461700
124495443
13294b8a7
141a5cc15
151246d70
hexc86d33

13135155 has 24 divisors (see below), whose sum is σ = 23103696. Its totient is φ = 6367680.

The previous prime is 13135153. The next prime is 13135163. The reversal of 13135155 is 55153131.

13135155 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 13135155 - 21 = 13135153 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13135153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1804 + ... + 5433.

It is an arithmetic number, because the mean of its divisors is an integer number (962654).

Almost surely, 213135155 is an apocalyptic number.

13135155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13135155 is a deficient number, since it is larger than the sum of its proper divisors (9968541).

13135155 is a wasteful number, since it uses less digits than its factorization.

13135155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7267 (or 7256 counting only the distinct ones).

The product of its digits is 1125, while the sum is 24.

The square root of 13135155 is about 3624.2454387086. The cubic root of 13135155 is about 235.9455191199.

Adding to 13135155 its reverse (55153131), we get a palindrome (68288286).

The spelling of 13135155 in words is "thirteen million, one hundred thirty-five thousand, one hundred fifty-five".

Divisors: 1 3 5 11 15 33 55 121 165 363 605 1815 7237 21711 36185 79607 108555 238821 398035 875677 1194105 2627031 4378385 13135155