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13472705 = 52694541
BaseRepresentation
bin110011011001…
…001111000001
3221100111002002
4303121033001
511422111310
61200433345
7222342011
oct63311701
927314062
1013472705
117672274
124618855
132a3941c
141b09c41
1512b1da5
hexcd93c1

13472705 has 4 divisors (see below), whose sum is σ = 16167252. Its totient is φ = 10778160.

The previous prime is 13472689. The next prime is 13472707. The reversal of 13472705 is 50727431.

13472705 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: 50727431 = 257197383.

It can be written as a sum of positive squares in 2 ways, for example, as 9759376 + 3713329 = 3124^2 + 1927^2 .

It is not a de Polignac number, because 13472705 - 24 = 13472689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13472707) 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, 1347266 + ... + 1347275.

It is an arithmetic number, because the mean of its divisors is an integer number (4041813).

Almost surely, 213472705 is an apocalyptic number.

It is an amenable number.

13472705 is a deficient number, since it is larger than the sum of its proper divisors (2694547).

13472705 is an equidigital number, since it uses as much as digits as its factorization.

13472705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694546.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 13472705 is about 3670.5183557639. The cubic root of 13472705 is about 237.9495750339.

The spelling of 13472705 in words is "thirteen million, four hundred seventy-two thousand, seven hundred five".

Divisors: 1 5 2694541 13472705