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13348645 = 52669729
BaseRepresentation
bin110010111010…
…111100100101
3221010011220021
4302322330211
511404124040
61154035141
7221314222
oct62727445
927104807
1013348645
117598042
124578ab1
1329c4b0b
141ab6949
15128a24a
hexcbaf25

13348645 has 4 divisors (see below), whose sum is σ = 16018380. Its totient is φ = 10678912.

The previous prime is 13348637. The next prime is 13348649. The reversal of 13348645 is 54684331.

It is a happy number.

13348645 is digitally balanced in base 3, 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: 54684331 = 134206487.

It can be written as a sum of positive squares in 2 ways, for example, as 8892324 + 4456321 = 2982^2 + 2111^2 .

It is a cyclic number.

It is not a de Polignac number, because 13348645 - 23 = 13348637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13348645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13348649) 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, 1334860 + ... + 1334869.

It is an arithmetic number, because the mean of its divisors is an integer number (4004595).

Almost surely, 213348645 is an apocalyptic number.

It is an amenable number.

13348645 is a deficient number, since it is larger than the sum of its proper divisors (2669735).

13348645 is an equidigital number, since it uses as much as digits as its factorization.

13348645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669734.

The product of its digits is 34560, while the sum is 34.

The square root of 13348645 is about 3653.5797514219. The cubic root of 13348645 is about 237.2169555166.

The spelling of 13348645 in words is "thirteen million, three hundred forty-eight thousand, six hundred forty-five".

Divisors: 1 5 2669729 13348645