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1408229 = 1782837
BaseRepresentation
bin101010111110011100101
32122112201122
411113303211
5330030404
650103325
714653424
oct5276345
92575648
101408229
11882029
1257ab45
133a3c94
142892bb
151cc3be
hex157ce5

1408229 has 4 divisors (see below), whose sum is σ = 1491084. Its totient is φ = 1325376.

The previous prime is 1408219. The next prime is 1408241. The reversal of 1408229 is 9228041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 388129 + 1020100 = 623^2 + 1010^2 .

It is a cyclic number.

It is not a de Polignac number, because 1408229 - 212 = 1404133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1408198 and 1408207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1408219) 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, 41402 + ... + 41435.

It is an arithmetic number, because the mean of its divisors is an integer number (372771).

21408229 is an apocalyptic number.

It is an amenable number.

1408229 is a deficient number, since it is larger than the sum of its proper divisors (82855).

1408229 is an equidigital number, since it uses as much as digits as its factorization.

1408229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82854.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1408229 is about 1186.6882488674. The cubic root of 1408229 is about 112.0876492889.

The spelling of 1408229 in words is "one million, four hundred eight thousand, two hundred twenty-nine".

Divisors: 1 17 82837 1408229