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BaseRepresentation
bin111101000100010011101
310202122221002
413220202131
51003013203
6110520045
723002655
oct7504235
93678832
102001053
11114746a
12806025
13550a72
143a1365
15297d88
hex1e889d

2001053 has 4 divisors (see below), whose sum is σ = 2118780. Its totient is φ = 1883328.

The previous prime is 2001049. The next prime is 2001067. The reversal of 2001053 is 3501002.

Adding to 2001053 its reverse (3501002), we get a palindrome (5502055).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3501002 = 21750501.

It can be written as a sum of positive squares in 2 ways, for example, as 1194649 + 806404 = 1093^2 + 898^2 .

It is not a de Polignac number, because 2001053 - 22 = 2001049 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 (2001073) 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, 58838 + ... + 58871.

It is an arithmetic number, because the mean of its divisors is an integer number (529695).

22001053 is an apocalyptic number.

It is an amenable number.

2001053 is a deficient number, since it is larger than the sum of its proper divisors (117727).

2001053 is a wasteful number, since it uses less digits than its factorization.

2001053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117726.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 2001053 is about 1414.5858051034. The cubic root of 2001053 is about 126.0142127245.

The spelling of 2001053 in words is "two million, one thousand, fifty-three".

Divisors: 1 17 117709 2001053