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2988775680 = 283511173409
BaseRepresentation
bin1011001000100101…
…0001100100000000
321201021220112110120
42302021101210000
522110111310210
61212323500240
7134031113502
oct26211214400
97637815416
102988775680
1112a40a4450
126b4b27680
13388284627
14204d23d72
151275c8270
hexb2251900

2988775680 has 288 divisors, whose sum is σ = 10498965120. Its totient is φ = 718602240.

The previous prime is 2988775679. The next prime is 2988775711. The reversal of 2988775680 is 865778892.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7307316 + ... + 7307724.

It is an arithmetic number, because the mean of its divisors is an integer number (36454740).

Almost surely, 22988775680 is an apocalyptic number.

2988775680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2988775680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5249482560).

2988775680 is an abundant number, since it is smaller than the sum of its proper divisors (7510189440).

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

2988775680 is a wasteful number, since it uses less digits than its factorization.

2988775680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 60.

The square root of 2988775680 is about 54669.6961762181. The cubic root of 2988775680 is about 1440.4486256502.

The spelling of 2988775680 in words is "two billion, nine hundred eighty-eight million, seven hundred seventy-five thousand, six hundred eighty".