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2688785012 = 224341937309
BaseRepresentation
bin1010000001000011…
…1001101001110100
320221101102102122002
42200100321221310
521001312110022
61122445554432
7123426203234
oct24020715164
96841372562
102688785012
11115a826a81
12630575a18
1333b08ab64
141b7153cc4
1510b0bc092
hexa0439a74

2688785012 has 24 divisors (see below), whose sum is σ = 4826421600. Its totient is φ = 1309958496.

The previous prime is 2688785009. The next prime is 2688785017. The reversal of 2688785012 is 2105878862.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688785017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53414 + ... + 90722.

It is an arithmetic number, because the mean of its divisors is an integer number (201100900).

Almost surely, 22688785012 is an apocalyptic number.

It is an amenable number.

2688785012 is a deficient number, since it is larger than the sum of its proper divisors (2137636588).

2688785012 is a wasteful number, since it uses less digits than its factorization.

2688785012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37775 (or 37773 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 47.

The square root of 2688785012 is about 51853.4956584414. The cubic root of 2688785012 is about 1390.5459980854.

The spelling of 2688785012 in words is "two billion, six hundred eighty-eight million, seven hundred eighty-five thousand, twelve".