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1385422 = 2692711
BaseRepresentation
bin101010010001111001110
32121101102221
411102033032
5323313142
645405554
714530063
oct5221716
92541387
101385422
11866985
125698ba
1339679c
14280c6a
151c5767
hex1523ce

1385422 has 4 divisors (see below), whose sum is σ = 2078136. Its totient is φ = 692710.

The previous prime is 1385411. The next prime is 1385429. The reversal of 1385422 is 2245831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2245831 = 7320833.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385429) 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 as a sum of consecutive naturals, namely, 346354 + ... + 346357.

It is an arithmetic number, because the mean of its divisors is an integer number (519534).

21385422 is an apocalyptic number.

1385422 is a deficient number, since it is larger than the sum of its proper divisors (692714).

1385422 is an equidigital number, since it uses as much as digits as its factorization.

1385422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692713.

The product of its digits is 1920, while the sum is 25.

The square root of 1385422 is about 1177.0395065587. The cubic root of 1385422 is about 111.4792470106.

The spelling of 1385422 in words is "one million, three hundred eighty-five thousand, four hundred twenty-two".

Divisors: 1 2 692711 1385422