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2138057 = 2392959
BaseRepresentation
bin1000001001111111001001
311000121212022
420021333021
51021404212
6113454225
724113255
oct10117711
94017768
102138057
111230399
12871375
1359b22c
143d9265
152c3772
hex209fc9

2138057 has 4 divisors (see below), whose sum is σ = 2231040. Its totient is φ = 2045076.

The previous prime is 2138033. The next prime is 2138093. The reversal of 2138057 is 7508312.

2138057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 2138057 - 210 = 2137033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2138657) 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, 46457 + ... + 46502.

It is an arithmetic number, because the mean of its divisors is an integer number (557760).

22138057 is an apocalyptic number.

It is an amenable number.

2138057 is a deficient number, since it is larger than the sum of its proper divisors (92983).

2138057 is an equidigital number, since it uses as much as digits as its factorization.

2138057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92982.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 2138057 is about 1462.2096292940. The cubic root of 2138057 is about 128.8268614488.

The spelling of 2138057 in words is "two million, one hundred thirty-eight thousand, fifty-seven".

Divisors: 1 23 92959 2138057