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13135051 = 16778653
BaseRepresentation
bin110010000110…
…110011001011
3220201022220101
4302012303023
511330310201
61145310231
7216434416
oct62066313
926638811
1013135051
117461616
124495377
13294b827
141a5cb7d
151246d01
hexc86ccb

13135051 has 4 divisors (see below), whose sum is σ = 13213872. Its totient is φ = 13056232.

The previous prime is 13135049. The next prime is 13135079. The reversal of 13135051 is 15053131.

13135051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15053131 = 30749033.

It is a cyclic number.

It is not a de Polignac number, because 13135051 - 21 = 13135049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13135651) 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, 39160 + ... + 39493.

It is an arithmetic number, because the mean of its divisors is an integer number (3303468).

Almost surely, 213135051 is an apocalyptic number.

13135051 is a deficient number, since it is larger than the sum of its proper divisors (78821).

13135051 is an equidigital number, since it uses as much as digits as its factorization.

13135051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78820.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 13135051 is about 3624.2310908660. The cubic root of 13135051 is about 235.9448964042.

Adding to 13135051 its reverse (15053131), we get a palindrome (28188182).

The spelling of 13135051 in words is "thirteen million, one hundred thirty-five thousand, fifty-one".

Divisors: 1 167 78653 13135051