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1385893 is a prime number
BaseRepresentation
bin101010010010110100101
32121102002101
411102112211
5323322033
645412101
714531335
oct5222645
92542071
101385893
11867273
1256a031
13396a72
142810c5
151c597d
hex1525a5

1385893 has 2 divisors, whose sum is σ = 1385894. Its totient is φ = 1385892.

The previous prime is 1385887. The next prime is 1385899. The reversal of 1385893 is 3985831.

It is a balanced prime because it is at equal distance from previous prime (1385887) and next prime (1385899).

It can be written as a sum of positive squares in only one way, i.e., 842724 + 543169 = 918^2 + 737^2 .

It is a cyclic number.

It is not a de Polignac number, because 1385893 - 25 = 1385861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1385899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692946 + 692947.

It is an arithmetic number, because the mean of its divisors is an integer number (692947).

21385893 is an apocalyptic number.

It is an amenable number.

1385893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385893 is an equidigital number, since it uses as much as digits as its factorization.

1385893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 37.

The square root of 1385893 is about 1177.2395678026. The cubic root of 1385893 is about 111.4918787277.

It can be divided in two parts, 1385 and 893, that added together give a triangular number (2278 = T67).

The spelling of 1385893 in words is "one million, three hundred eighty-five thousand, eight hundred ninety-three".