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13118906 = 26779689
BaseRepresentation
bin110010000010…
…110110111010
3220200111202102
4302002312322
511324301111
61145103402
7216336353
oct62026672
926614672
1013118906
117450479
124487b62
132944388
141a56d2a
15124213b
hexc82dba

13118906 has 8 divisors (see below), whose sum is σ = 19709460. Its totient is φ = 6549088.

The previous prime is 13118891. The next prime is 13118909. The reversal of 13118906 is 60981131.

It is a happy number.

13118906 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 11282881 + 1836025 = 3359^2 + 1355^2 .

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 (13118909) 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, 3491 + ... + 6198.

Almost surely, 213118906 is an apocalyptic number.

13118906 is a deficient number, since it is larger than the sum of its proper divisors (6590554).

13118906 is an equidigital number, since it uses as much as digits as its factorization.

13118906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10368.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 13118906 is about 3622.0030369949. The cubic root of 13118906 is about 235.8481859012.

The spelling of 13118906 in words is "thirteen million, one hundred eighteen thousand, nine hundred six".

Divisors: 1 2 677 1354 9689 19378 6559453 13118906