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2000069 = 2119479
BaseRepresentation
bin111101000010011000101
310202121120122
413220103011
51003000234
6110511325
723000051
oct7502305
93677518
102000069
111146755
12805545
13550496
143a0c61
1529792e
hex1e84c5

2000069 has 4 divisors (see below), whose sum is σ = 2009760. Its totient is φ = 1990380.

The previous prime is 2000039. The next prime is 2000081. The reversal of 2000069 is 9600002.

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 a de Polignac number, because none of the positive numbers 2k-2000069 is a prime.

It is a super-2 number, since 2×20000692 = 8000552009522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 4529 + ... + 4950.

It is an arithmetic number, because the mean of its divisors is an integer number (502440).

22000069 is an apocalyptic number.

It is an amenable number.

2000069 is a deficient number, since it is larger than the sum of its proper divisors (9691).

2000069 is an equidigital number, since it uses as much as digits as its factorization.

2000069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9690.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2000069 is about 1414.2379573466. The cubic root of 2000069 is about 125.9935538820.

The spelling of 2000069 in words is "two million, sixty-nine", and thus it is an aban number and an uban number.

Divisors: 1 211 9479 2000069