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4427389 = 31251569
BaseRepresentation
bin10000111000111001111101
322022221020101
4100320321331
52113134024
6234521101
752426561
oct20707175
98287211
104427389
1125543aa
121596191
13bc0275
148336a1
155c6c44
hex438e7d

4427389 has 8 divisors (see below), whose sum is σ = 4596480. Its totient is φ = 4260000.

The previous prime is 4427369. The next prime is 4427393. The reversal of 4427389 is 9837244.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4427389 - 27 = 4427261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4427329) 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 7 ways as a sum of consecutive naturals, for example, 7497 + ... + 8065.

It is an arithmetic number, because the mean of its divisors is an integer number (574560).

Almost surely, 24427389 is an apocalyptic number.

It is an amenable number.

4427389 is a deficient number, since it is larger than the sum of its proper divisors (169091).

4427389 is a wasteful number, since it uses less digits than its factorization.

4427389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851.

The product of its digits is 48384, while the sum is 37.

The square root of 4427389 is about 2104.1361647954. The cubic root of 4427389 is about 164.2035569766.

The spelling of 4427389 in words is "four million, four hundred twenty-seven thousand, three hundred eighty-nine".

Divisors: 1 31 251 569 7781 17639 142819 4427389