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10806438 = 231801073
BaseRepresentation
bin101001001110…
…010010100110
3202100000122110
4221032102212
510231301223
61023341450
7160565436
oct51162246
922300573
1010806438
116111045
123751886
132314956
1416142c6
15e36d93
hexa4e4a6

10806438 has 8 divisors (see below), whose sum is σ = 21612888. Its totient is φ = 3602144.

The previous prime is 10806437. The next prime is 10806443. The reversal of 10806438 is 83460801.

It is a happy number.

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

10806438 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10806431) 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, 900531 + ... + 900542.

It is an arithmetic number, because the mean of its divisors is an integer number (2701611).

Almost surely, 210806438 is an apocalyptic number.

10806438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10806438 is a wasteful number, since it uses less digits than its factorization.

10806438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801078.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 10806438 is about 3287.3147096072. The cubic root of 10806438 is about 221.0858030361.

The spelling of 10806438 in words is "ten million, eight hundred six thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 1801073 3602146 5403219 10806438