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2038888889 = 2388647343
BaseRepresentation
bin111100110000110…
…1111100110111001
312021002112021202022
41321201233212321
513133423421024
6534152244225
7101345161322
oct17141574671
95232467668
102038888889
11956999444
1248a9a0675
1326654223b
14154add449
15bdee535e
hex7986f9b9

2038888889 has 4 divisors (see below), whose sum is σ = 2127536256. Its totient is φ = 1950241524.

The previous prime is 2038888883. The next prime is 2038888913. The reversal of 2038888889 is 9888888302.

It is a happy number.

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 not a de Polignac number, because 2038888889 - 28 = 2038888633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2038888883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44323649 + ... + 44323694.

It is an arithmetic number, because the mean of its divisors is an integer number (531884064).

Almost surely, 22038888889 is an apocalyptic number.

It is an amenable number.

2038888889 is a deficient number, since it is larger than the sum of its proper divisors (88647367).

2038888889 is an equidigital number, since it uses as much as digits as its factorization.

2038888889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88647366.

The product of its (nonzero) digits is 14155776, while the sum is 62.

The square root of 2038888889 is about 45154.0572817106. The cubic root of 2038888889 is about 1268.0348405428.

The spelling of 2038888889 in words is "two billion, thirty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-nine".

Divisors: 1 23 88647343 2038888889