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2990227680 = 2532511311607
BaseRepresentation
bin1011001000111011…
…0100000011100000
321201101122022020100
42302032310003200
522110444241210
61212414542400
7134046341646
oct26216640340
97641568210
102990227680
1112a49a6350
126b5507a00
133886724bb
142051c1196
151277b35c0
hexb23b40e0

2990227680 has 288 divisors, whose sum is σ = 11185993728. Its totient is φ = 721382400.

The previous prime is 2990227673. The next prime is 2990227753. The reversal of 2990227680 is 867220992.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 4925937 + ... + 4926543.

It is an arithmetic number, because the mean of its divisors is an integer number (38840256).

Almost surely, 22990227680 is an apocalyptic number.

2990227680 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 2990227680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5592996864).

2990227680 is an abundant number, since it is smaller than the sum of its proper divisors (8195766048).

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

2990227680 is a wasteful number, since it uses less digits than its factorization.

2990227680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 2990227680 is about 54682.9743155948. The cubic root of 2990227680 is about 1440.6818530114.

The spelling of 2990227680 in words is "two billion, nine hundred ninety million, two hundred twenty-seven thousand, six hundred eighty".