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2000023 = 15712739
BaseRepresentation
bin111101000010010010111
310202121111221
413220102113
51003000043
6110511211
722666654
oct7502227
93677457
102000023
111146713
12805507
1355045c
143a0c2b
152978ed
hex1e8497

2000023 has 4 divisors (see below), whose sum is σ = 2012920. Its totient is φ = 1987128.

The previous prime is 2000003. The next prime is 2000029. The reversal of 2000023 is 3200002.

Adding to 2000023 its reverse (3200002), we get a palindrome (5200025).

It can be divided in two parts, 200002 and 3, that multiplied together give a palindrome (600006).

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2000023 - 29 = 1999511 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 (2000029) 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, 6213 + ... + 6526.

It is an arithmetic number, because the mean of its divisors is an integer number (503230).

22000023 is an apocalyptic number.

2000023 is a deficient number, since it is larger than the sum of its proper divisors (12897).

2000023 is a wasteful number, since it uses less digits than its factorization.

2000023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12896.

The product of its (nonzero) digits is 12, while the sum is 7.

The square root of 2000023 is about 1414.2216940777. The cubic root of 2000023 is about 125.9925879574.

The spelling of 2000023 in words is "two million, twenty-three", and thus it is an aban number and an uban number.

Divisors: 1 157 12739 2000023