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13155146 = 27578689
BaseRepresentation
bin110010001011…
…101101001010
3220202100110122
4302023231022
511331431041
61145543242
7216550124
oct62135512
926670418
1013155146
117475724
1244a4b22
132957a14
141a66214
15124cc4b
hexc8bb4a

13155146 has 8 divisors (see below), whose sum is σ = 19761060. Its totient is φ = 6568128.

The previous prime is 13155143. The next prime is 13155157. The reversal of 13155146 is 64155131.

13155146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12075625 + 1079521 = 3475^2 + 1039^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13155143) 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, 2831 + ... + 5858.

Almost surely, 213155146 is an apocalyptic number.

13155146 is a deficient number, since it is larger than the sum of its proper divisors (6605914).

13155146 is an equidigital number, since it uses as much as digits as its factorization.

13155146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9448.

The product of its digits is 1800, while the sum is 26.

The square root of 13155146 is about 3627.0023435338. The cubic root of 13155146 is about 236.0651572461.

The spelling of 13155146 in words is "thirteen million, one hundred fifty-five thousand, one hundred forty-six".

Divisors: 1 2 757 1514 8689 17378 6577573 13155146