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BaseRepresentation
bin111101000010010010011
310202121111210
413220102103
51003000034
6110511203
722666650
oct7502223
93677453
102000019
11114670a
12805503
13550458
143a0c27
152978e9
hex1e8493

2000019 has 8 divisors (see below), whose sum is σ = 3047680. Its totient is φ = 1142856.

The previous prime is 2000003. The next prime is 2000029. The reversal of 2000019 is 9100002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2000019 - 24 = 2000003 is a prime.

It is a super-2 number, since 2×20000192 = 8000152000722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1999968 and 2000013.

It is not an unprimeable number, because it can be changed into a prime (2000029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47599 + ... + 47640.

It is an arithmetic number, because the mean of its divisors is an integer number (380960).

22000019 is an apocalyptic number.

2000019 is a deficient number, since it is larger than the sum of its proper divisors (1047661).

2000019 is an equidigital number, since it uses as much as digits as its factorization.

2000019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95249.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 2000019 is about 1414.2202798716. The cubic root of 2000019 is about 125.9925039632.

The spelling of 2000019 in words is "two million, nineteen", and thus it is an aban number and an uban number.

Divisors: 1 3 7 21 95239 285717 666673 2000019