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2057017 = 17121001
BaseRepresentation
bin111110110001100111001
310212111200211
413312030321
51011311032
6112031121
723325064
oct7661471
93774624
102057017
111185516
128324a1
13570391
143b78db
152a9747
hex1f6339

2057017 has 4 divisors (see below), whose sum is σ = 2178036. Its totient is φ = 1936000.

The previous prime is 2057009. The next prime is 2057021. The reversal of 2057017 is 7107502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7107502 = 23553751.

It can be written as a sum of positive squares in 2 ways, for example, as 1382976 + 674041 = 1176^2 + 821^2 .

It is a cyclic number.

It is not a de Polignac number, because 2057017 - 23 = 2057009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2057047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60484 + ... + 60517.

It is an arithmetic number, because the mean of its divisors is an integer number (544509).

22057017 is an apocalyptic number.

It is an amenable number.

2057017 is a deficient number, since it is larger than the sum of its proper divisors (121019).

2057017 is a wasteful number, since it uses less digits than its factorization.

2057017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121018.

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 2057017 is about 1434.2304556800. The cubic root of 2057017 is about 127.1781862373.

The spelling of 2057017 in words is "two million, fifty-seven thousand, seventeen".

Divisors: 1 17 121001 2057017