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2886140 = 225144307
BaseRepresentation
bin1011000000100111111100
312102122001002
423000213330
51214324030
6141505432
733350255
oct13004774
95378032
102886140
1116a1444
12b72278
137a089a
14551b2c
153c0245
hex2c09fc

2886140 has 12 divisors (see below), whose sum is σ = 6060936. Its totient is φ = 1154448.

The previous prime is 2886139. The next prime is 2886161. The reversal of 2886140 is 416882.

2886140 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72134 + ... + 72173.

It is an arithmetic number, because the mean of its divisors is an integer number (505078).

22886140 is an apocalyptic number.

2886140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2886140 is an abundant number, since it is smaller than the sum of its proper divisors (3174796).

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

2886140 is a wasteful number, since it uses less digits than its factorization.

2886140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144316 (or 144314 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 2886140 is about 1698.8643265429. The cubic root of 2886140 is about 142.3767683980.

It can be divided in two parts, 28861 and 40, that multiplied together give a triangular number (1154440 = T1519).

The spelling of 2886140 in words is "two million, eight hundred eighty-six thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 144307 288614 577228 721535 1443070 2886140