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13825738 = 26912869
BaseRepresentation
bin110100101111…
…011011001010
3222000102100101
4310233123022
512014410423
61212200014
7225342163
oct64573312
928012311
1013825738
117893533
12476900a
132b31014
141b9c76a
1513317ad
hexd2f6ca

13825738 has 4 divisors (see below), whose sum is σ = 20738610. Its totient is φ = 6912868.

The previous prime is 13825717. The next prime is 13825741. The reversal of 13825738 is 83752831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83752831 = 673124447.

It can be written as a sum of positive squares in only one way, i.e., 13638249 + 187489 = 3693^2 + 433^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13825697 and 13825706.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3456433 + ... + 3456436.

Almost surely, 213825738 is an apocalyptic number.

13825738 is a deficient number, since it is larger than the sum of its proper divisors (6912872).

13825738 is an equidigital number, since it uses as much as digits as its factorization.

13825738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6912871.

The product of its digits is 40320, while the sum is 37.

The square root of 13825738 is about 3718.2977288001. The cubic root of 13825738 is about 240.0100574489.

The spelling of 13825738 in words is "thirteen million, eight hundred twenty-five thousand, seven hundred thirty-eight".

Divisors: 1 2 6912869 13825738