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2053985 = 5547751
BaseRepresentation
bin111110101011101100001
310212100112112
413311131201
51011211420
6112005105
723313203
oct7653541
93770475
102053985
11118320a
12830795
1356bb9b
143b6773
152a88c5
hex1f5761

2053985 has 8 divisors (see below), whose sum is σ = 2472576. Its totient is φ = 1638000.

The previous prime is 2053979. The next prime is 2054009. The reversal of 2053985 is 5893502.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2053985 - 220 = 1005409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2360 + ... + 3110.

It is an arithmetic number, because the mean of its divisors is an integer number (309072).

22053985 is an apocalyptic number.

It is an amenable number.

2053985 is a deficient number, since it is larger than the sum of its proper divisors (418591).

2053985 is an equidigital number, since it uses as much as digits as its factorization.

2053985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 2053985 is about 1433.1730530540. The cubic root of 2053985 is about 127.1156695163.

The spelling of 2053985 in words is "two million, fifty-three thousand, nine hundred eighty-five".

Divisors: 1 5 547 751 2735 3755 410797 2053985