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2688000929 = 6144065589
BaseRepresentation
bin1010000000110111…
…1010001110100001
320221022221121001222
42200031322032201
521001112012204
61122421104425
7123416426255
oct24015721641
96838847058
102688000929
11115a340979
12630258115
1333ab74cc3
141b6dcc265
1510aeb4abe
hexa037a3a1

2688000929 has 4 divisors (see below), whose sum is σ = 2732066580. Its totient is φ = 2643935280.

The previous prime is 2688000893. The next prime is 2688000941. The reversal of 2688000929 is 9290008862.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1372850704 + 1315150225 = 37052^2 + 36265^2 .

It is a cyclic number.

It is not a de Polignac number, because 2688000929 - 212 = 2687996833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2688000929.

It is not an unprimeable number, because it can be changed into a prime (2688000949) 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, 22032734 + ... + 22032855.

It is an arithmetic number, because the mean of its divisors is an integer number (683016645).

Almost surely, 22688000929 is an apocalyptic number.

It is an amenable number.

2688000929 is a deficient number, since it is larger than the sum of its proper divisors (44065651).

2688000929 is an equidigital number, since it uses as much as digits as its factorization.

2688000929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44065650.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 2688000929 is about 51845.9345465004. The cubic root of 2688000929 is about 1390.4108181346.

The spelling of 2688000929 in words is "two billion, six hundred eighty-eight million, nine hundred twenty-nine", and thus it is an aban number.

Divisors: 1 61 44065589 2688000929