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2887130844 = 22331323293083
BaseRepresentation
bin1010110000010110…
…0001111011011100
321110012122102222000
42230011201323130
521403101141334
61154253122300
7131355131043
oct25405417334
97405572860
102887130844
11125178a154
12686a89390
133701b6260
141d562555a
1511d6eb299
hexac161edc

2887130844 has 192 divisors, whose sum is σ = 8704281600. Its totient is φ = 820157184.

The previous prime is 2887130837. The next prime is 2887130879. The reversal of 2887130844 is 4480317882.

2887130844 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2887130844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 934927 + ... + 938009.

It is an arithmetic number, because the mean of its divisors is an integer number (45334800).

Almost surely, 22887130844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2887130844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4352140800).

2887130844 is an abundant number, since it is smaller than the sum of its proper divisors (5817150756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2887130844 is a wasteful number, since it uses less digits than its factorization.

2887130844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161 (or 3153 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The square root of 2887130844 is about 53732.0281024270. The cubic root of 2887130844 is about 1423.9305971046.

The spelling of 2887130844 in words is "two billion, eight hundred eighty-seven million, one hundred thirty thousand, eight hundred forty-four".