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1385081 = 19269271
BaseRepresentation
bin101010010001001111001
32121100222022
411102021321
5323310311
645404225
714526065
oct5221171
92540868
101385081
118666a5
12569675
13396599
14280aa5
151c55db
hex152279

1385081 has 8 divisors (see below), whose sum is σ = 1468800. Its totient is φ = 1302480.

The previous prime is 1385077. The next prime is 1385093. The reversal of 1385081 is 1805831.

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 1385081 - 22 = 1385077 is a prime.

It is a super-2 number, since 2×13850812 = 3836898753122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1385081.

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 7 ways as a sum of consecutive naturals, for example, 4976 + ... + 5246.

It is an arithmetic number, because the mean of its divisors is an integer number (183600).

21385081 is an apocalyptic number.

It is an amenable number.

1385081 is a deficient number, since it is larger than the sum of its proper divisors (83719).

1385081 is a wasteful number, since it uses less digits than its factorization.

1385081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 1385081 is about 1176.8946426932. The cubic root of 1385081 is about 111.4700999680.

It can be divided in two parts, 13850 and 81, that added together give a palindrome (13931).

The spelling of 1385081 in words is "one million, three hundred eighty-five thousand, eighty-one".

Divisors: 1 19 269 271 5111 5149 72899 1385081