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2870053 = 3777569
BaseRepresentation
bin1010111100101100100101
312101210222021
422330230211
51213320203
6141303141
733252334
oct12745445
95353867
102870053
11169034a
12b64ab1
13796474
14549d1b
153ba5bd
hex2bcb25

2870053 has 4 divisors (see below), whose sum is σ = 2947660. Its totient is φ = 2792448.

The previous prime is 2870051. The next prime is 2870081. The reversal of 2870053 is 3500782.

2870053 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3500782 = 21750391.

It can be written as a sum of positive squares in 2 ways, for example, as 2010724 + 859329 = 1418^2 + 927^2 .

It is a cyclic number.

It is not a de Polignac number, because 2870053 - 21 = 2870051 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 (2870051) 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, 38748 + ... + 38821.

It is an arithmetic number, because the mean of its divisors is an integer number (736915).

22870053 is an apocalyptic number.

It is an amenable number.

2870053 is a deficient number, since it is larger than the sum of its proper divisors (77607).

2870053 is an equidigital number, since it uses as much as digits as its factorization.

2870053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77606.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2870053 is about 1694.1230769929. The cubic root of 2870053 is about 142.1117450103. Note that the first 3 decimals are identical.

The spelling of 2870053 in words is "two million, eight hundred seventy thousand, fifty-three".

Divisors: 1 37 77569 2870053