Search a number
-
+
2042000005 = 51093746789
BaseRepresentation
bin111100110110110…
…0111001010000101
312021022101100101211
41321231213022011
513140223000010
6534343051421
7101413466533
oct17155471205
95238340354
102042000005
11958723911
1248ba40b71
13267091336
141552ad153
15be40c08a
hex79b67285

2042000005 has 8 divisors (see below), whose sum is σ = 2472881400. Its totient is φ = 1618612416.

The previous prime is 2041999991. The next prime is 2042000027. The reversal of 2042000005 is 5000002402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 132572196 + 1909427809 = 11514^2 + 43697^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2042000005 - 29 = 2041999493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1872850 + ... + 1873939.

It is an arithmetic number, because the mean of its divisors is an integer number (309110175).

Almost surely, 22042000005 is an apocalyptic number.

It is an amenable number.

2042000005 is a deficient number, since it is larger than the sum of its proper divisors (430881395).

2042000005 is a wasteful number, since it uses less digits than its factorization.

2042000005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746903.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 2042000005 is about 45188.4941661038. The cubic root of 2042000005 is about 1268.6794724723.

Adding to 2042000005 its reverse (5000002402), we get a palindrome (7042002407).

The spelling of 2042000005 in words is "two billion, forty-two million, five", and thus it is an aban number and an uban number.

Divisors: 1 5 109 545 3746789 18733945 408400001 2042000005