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2008529139 = 3669509713
BaseRepresentation
bin111011110110111…
…1011100011110011
312011222101212000010
41313231323203303
513103140413024
6531145430003
7100526134041
oct16755734363
95158355003
102008529139
11940842741
1248079b303
132601725a6
14150a79391
15bb4e9b29
hex77b7b8f3

2008529139 has 4 divisors (see below), whose sum is σ = 2678038856. Its totient is φ = 1339019424.

The previous prime is 2008529093. The next prime is 2008529143. The reversal of 2008529139 is 9319258002.

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

It is not a de Polignac number, because 2008529139 - 211 = 2008527091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2008529097 and 2008529106.

It is not an unprimeable number, because it can be changed into a prime (2008529179) 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, 334754854 + ... + 334754859.

It is an arithmetic number, because the mean of its divisors is an integer number (669509714).

Almost surely, 22008529139 is an apocalyptic number.

2008529139 is a deficient number, since it is larger than the sum of its proper divisors (669509717).

2008529139 is an equidigital number, since it uses as much as digits as its factorization.

2008529139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669509716.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 2008529139 is about 44816.6167732461. The cubic root of 2008529139 is about 1261.7095169124.

The spelling of 2008529139 in words is "two billion, eight million, five hundred twenty-nine thousand, one hundred thirty-nine".

Divisors: 1 3 669509713 2008529139