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1385087 = 11211447
BaseRepresentation
bin101010010001001111111
32121100222112
411102021333
5323310322
645404235
714526104
oct5221177
92540875
101385087
11866700
1256967b
133965a2
14280aab
151c55e2
hex15227f

1385087 has 6 divisors (see below), whose sum is σ = 1522584. Its totient is φ = 1259060.

The previous prime is 1385077. The next prime is 1385093. The reversal of 1385087 is 7805831.

It is not a de Polignac number, because 1385087 - 24 = 1385071 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 (1385017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5603 + ... + 5844.

It is an arithmetic number, because the mean of its divisors is an integer number (253764).

21385087 is an apocalyptic number.

1385087 is a deficient number, since it is larger than the sum of its proper divisors (137497).

1385087 is a wasteful number, since it uses less digits than its factorization.

1385087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11469 (or 11458 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 1385087 is about 1176.8971917717. The cubic root of 1385087 is about 111.4702609260.

It can be divided in two parts, 138 and 5087, that added together give a palindrome (5225).

The spelling of 1385087 in words is "one million, three hundred eighty-five thousand, eighty-seven".

Divisors: 1 11 121 11447 125917 1385087