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2053889 = 17120817
BaseRepresentation
bin111110101011100000001
310212100101222
413311130001
51011211024
6112004425
723313005
oct7653401
93770358
102053889
111183132
12830715
1356bb26
143b6705
152a885e
hex1f5701

2053889 has 4 divisors (see below), whose sum is σ = 2174724. Its totient is φ = 1933056.

The previous prime is 2053873. The next prime is 2053897. The reversal of 2053889 is 9883502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9883502 = 24941751.

It can be written as a sum of positive squares in 2 ways, for example, as 1575025 + 478864 = 1255^2 + 692^2 .

It is a cyclic number.

It is not a de Polignac number, because 2053889 - 24 = 2053873 is a prime.

It is a d-powerful number, because it can be written as 213 + 0 + 59 + 35 + 83 + 85 + 95 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2053819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60392 + ... + 60425.

It is an arithmetic number, because the mean of its divisors is an integer number (543681).

22053889 is an apocalyptic number.

It is an amenable number.

2053889 is a deficient number, since it is larger than the sum of its proper divisors (120835).

2053889 is a wasteful number, since it uses less digits than its factorization.

2053889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120834.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 2053889 is about 1433.1395605453. The cubic root of 2053889 is about 127.1136890906.

The spelling of 2053889 in words is "two million, fifty-three thousand, eight hundred eighty-nine".

Divisors: 1 17 120817 2053889