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2068428319 = 5821355339
BaseRepresentation
bin111101101001001…
…1011011000011111
312100011010001020021
41323102123120133
513214004201234
6541125333011
7102154231156
oct17322333037
95304101207
102068428319
119716348a1
12498867167
1326c6b56a9
141589cc59d
15c18cc9b4
hex7b49b61f

2068428319 has 4 divisors (see below), whose sum is σ = 2068789480. Its totient is φ = 2068067160.

The previous prime is 2068428317. The next prime is 2068428347. The reversal of 2068428319 is 9138248602.

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 2068428319 - 21 = 2068428317 is a prime.

It is a super-2 number, since 2×20684283192 = 8556791421682331522, 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 (2068428317) 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, 171849 + ... + 183490.

It is an arithmetic number, because the mean of its divisors is an integer number (517197370).

Almost surely, 22068428319 is an apocalyptic number.

2068428319 is a deficient number, since it is larger than the sum of its proper divisors (361161).

2068428319 is an equidigital number, since it uses as much as digits as its factorization.

2068428319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361160.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 2068428319 is about 45479.9771218060. The cubic root of 2068428319 is about 1274.1292671307.

The spelling of 2068428319 in words is "two billion, sixty-eight million, four hundred twenty-eight thousand, three hundred nineteen".

Divisors: 1 5821 355339 2068428319