Search a number
-
+
13952705 = 513214657
BaseRepresentation
bin110101001110…
…011011000001
3222020212111212
4311032123001
512032441310
61215015505
7226411304
oct65163301
928225455
1013952705
11796a968
12480a595
132b76a50
141bd2b3b
151359205
hexd4e6c1

13952705 has 8 divisors (see below), whose sum is σ = 18031272. Its totient is φ = 10303488.

The previous prime is 13952677. The next prime is 13952711. The reversal of 13952705 is 50725931.

13952705 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 4 ways, for example, as 790321 + 13162384 = 889^2 + 3628^2 .

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

It is not a de Polignac number, because 13952705 - 26 = 13952641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107264 + ... + 107393.

It is an arithmetic number, because the mean of its divisors is an integer number (2253909).

Almost surely, 213952705 is an apocalyptic number.

It is an amenable number.

13952705 is a deficient number, since it is larger than the sum of its proper divisors (4078567).

13952705 is a wasteful number, since it uses less digits than its factorization.

13952705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214675.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 13952705 is about 3735.3319798915. The cubic root of 13952705 is about 240.7425209935.

The spelling of 13952705 in words is "thirteen million, nine hundred fifty-two thousand, seven hundred five".

Divisors: 1 5 13 65 214657 1073285 2790541 13952705