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1385053 = 2236211
BaseRepresentation
bin101010010001001011101
32121100221021
411102021131
5323310203
645404141
714526025
oct5221135
92540837
101385053
1186667a
12569651
13396577
14280a85
151c55bd
hex15225d

1385053 has 4 divisors (see below), whose sum is σ = 1391488. Its totient is φ = 1378620.

The previous prime is 1385051. The next prime is 1385057. The reversal of 1385053 is 3505831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1385053 - 21 = 1385051 is a prime.

It is a super-3 number, since 3×13850533 = 7971139903339631631, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2883 + ... + 3328.

It is an arithmetic number, because the mean of its divisors is an integer number (347872).

21385053 is an apocalyptic number.

It is an amenable number.

1385053 is a deficient number, since it is larger than the sum of its proper divisors (6435).

1385053 is an equidigital number, since it uses as much as digits as its factorization.

1385053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6434.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1385053 is about 1176.8827469209. The cubic root of 1385053 is about 111.4693488244.

The spelling of 1385053 in words is "one million, three hundred eighty-five thousand, fifty-three".

Divisors: 1 223 6211 1385053