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10820041 = 17636473
BaseRepresentation
bin101001010001…
…100111001001
3202100201022021
4221101213021
510232220131
61023524441
7160653211
oct51214711
922321267
1010820041
116120291
123759721
13231abbb
141619241
15e3ae11
hexa519c9

10820041 has 4 divisors (see below), whose sum is σ = 11456532. Its totient is φ = 10183552.

The previous prime is 10820027. The next prime is 10820053. The reversal of 10820041 is 14002801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14002801 = 21316571.

It can be written as a sum of positive squares in 2 ways, for example, as 5621641 + 5198400 = 2371^2 + 2280^2 .

It is a cyclic number.

It is not a de Polignac number, because 10820041 - 25 = 10820009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10819997 and 10820024.

It is not an unprimeable number, because it can be changed into a prime (10820081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318220 + ... + 318253.

It is an arithmetic number, because the mean of its divisors is an integer number (2864133).

Almost surely, 210820041 is an apocalyptic number.

It is an amenable number.

10820041 is a deficient number, since it is larger than the sum of its proper divisors (636491).

10820041 is an equidigital number, since it uses as much as digits as its factorization.

10820041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636490.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 10820041 is about 3289.3830728573. The cubic root of 10820041 is about 221.1785307587.

Adding to 10820041 its reverse (14002801), we get a palindrome (24822842).

It can be divided in two parts, 108200 and 41, that added together give a square (108241 = 3292).

The spelling of 10820041 in words is "ten million, eight hundred twenty thousand, forty-one".

Divisors: 1 17 636473 10820041