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2053081 = 6730643
BaseRepresentation
bin111110101001111011001
310212022022001
413311033121
51011144311
6112001001
723310442
oct7651731
93768261
102053081
111182568
12830161
1356b654
143b62c9
152a84c1
hex1f53d9

2053081 has 4 divisors (see below), whose sum is σ = 2083792. Its totient is φ = 2022372.

The previous prime is 2053069. The next prime is 2053087. The reversal of 2053081 is 1803502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1803502 = 2901751.

It is a cyclic number.

It is not a de Polignac number, because 2053081 - 29 = 2052569 is a prime.

It is a super-2 number, since 2×20530812 = 8430283185122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2053087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15255 + ... + 15388.

It is an arithmetic number, because the mean of its divisors is an integer number (520948).

22053081 is an apocalyptic number.

It is an amenable number.

2053081 is a deficient number, since it is larger than the sum of its proper divisors (30711).

2053081 is an equidigital number, since it uses as much as digits as its factorization.

2053081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30710.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2053081 is about 1432.8576342401. The cubic root of 2053081 is about 127.0970180611.

Adding to 2053081 its reverse (1803502), we get a palindrome (3856583).

The spelling of 2053081 in words is "two million, fifty-three thousand, eighty-one".

Divisors: 1 67 30643 2053081