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1038161 = 4125321
BaseRepresentation
bin11111101011101010001
31221202002102
43331131101
5231210121
634130145
711552465
oct3753521
91852072
101038161
11649a93
12420955
132a46c7
141d04a5
1515790b
hexfd751

1038161 has 4 divisors (see below), whose sum is σ = 1063524. Its totient is φ = 1012800.

The previous prime is 1038157. The next prime is 1038187. The reversal of 1038161 is 1618301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1618301 = 4873323.

It can be written as a sum of positive squares in 2 ways, for example, as 398161 + 640000 = 631^2 + 800^2 .

It is a cyclic number.

It is not a de Polignac number, because 1038161 - 22 = 1038157 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1031161) 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, 12620 + ... + 12701.

It is an arithmetic number, because the mean of its divisors is an integer number (265881).

21038161 is an apocalyptic number.

It is an amenable number.

1038161 is a deficient number, since it is larger than the sum of its proper divisors (25363).

1038161 is an equidigital number, since it uses as much as digits as its factorization.

1038161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25362.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1038161 is about 1018.9018598472. The cubic root of 1038161 is about 101.2561871949.

The spelling of 1038161 in words is "one million, thirty-eight thousand, one hundred sixty-one".

Divisors: 1 41 25321 1038161