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1850085 = 32541113
BaseRepresentation
bin111000011101011100101
310110222211200
413003223211
5433200320
6103353113
721503556
oct7035345
93428750
101850085
111053aa6
12752799
134ca133
1436232d
15268290
hex1c3ae5

1850085 has 12 divisors (see below), whose sum is σ = 3206892. Its totient is φ = 986688.

The previous prime is 1850053. The next prime is 1850089. The reversal of 1850085 is 5800581.

It can be written as a sum of positive squares in 2 ways, for example, as 1077444 + 772641 = 1038^2 + 879^2 .

It is not a de Polignac number, because 1850085 - 25 = 1850053 is a prime.

It is a super-3 number, since 3×18500853 = 18997493332798092375, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1850089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20512 + ... + 20601.

It is an arithmetic number, because the mean of its divisors is an integer number (267241).

21850085 is an apocalyptic number.

1850085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1850085 is a deficient number, since it is larger than the sum of its proper divisors (1356807).

1850085 is a wasteful number, since it uses less digits than its factorization.

1850085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41124 (or 41121 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 1850085 is about 1360.1782971361. The cubic root of 1850085 is about 122.7619827001.

The spelling of 1850085 in words is "one million, eight hundred fifty thousand, eighty-five".

Divisors: 1 3 5 9 15 45 41113 123339 205565 370017 616695 1850085