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13825201 = 131063477
BaseRepresentation
bin110100101111…
…010010110001
3222000101121111
4310233102301
512014401301
61212153321
7225340465
oct64572261
928011544
1013825201
117893095
124768841
132b309c0
141b9c4a5
151331551
hexd2f4b1

13825201 has 4 divisors (see below), whose sum is σ = 14888692. Its totient is φ = 12761712.

The previous prime is 13825193. The next prime is 13825213. The reversal of 13825201 is 10252831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10252831 = 15496619.

It can be written as a sum of positive squares in 2 ways, for example, as 4734976 + 9090225 = 2176^2 + 3015^2 .

It is a cyclic number.

It is not a de Polignac number, because 13825201 - 23 = 13825193 is a prime.

It is a super-2 number, since 2×138252012 = 382272365380802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13825261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531726 + ... + 531751.

It is an arithmetic number, because the mean of its divisors is an integer number (3722173).

Almost surely, 213825201 is an apocalyptic number.

It is an amenable number.

13825201 is a deficient number, since it is larger than the sum of its proper divisors (1063491).

13825201 is a wasteful number, since it uses less digits than its factorization.

13825201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063490.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 13825201 is about 3718.2255176361. The cubic root of 13825201 is about 240.0069500302.

The spelling of 13825201 in words is "thirteen million, eight hundred twenty-five thousand, two hundred one".

Divisors: 1 13 1063477 13825201