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2638056 = 233109919
BaseRepresentation
bin1010000100000011101000
311222000201210
422010003220
51133404211
6132313120
731265061
oct12040350
94860653
102638056
111542013
12a727a0
137149a5
144c9568
153719a6
hex2840e8

2638056 has 16 divisors (see below), whose sum is σ = 6595200. Its totient is φ = 879344.

The previous prime is 2638039. The next prime is 2638057. The reversal of 2638056 is 6508362.

It is not an unprimeable number, because it can be changed into a prime (2638057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54936 + ... + 54983.

It is an arithmetic number, because the mean of its divisors is an integer number (412200).

22638056 is an apocalyptic number.

It is an amenable number.

2638056 is an abundant number, since it is smaller than the sum of its proper divisors (3957144).

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

2638056 is a wasteful number, since it uses less digits than its factorization.

2638056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109928 (or 109924 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2638056 is about 1624.2093461127. The cubic root of 2638056 is about 138.1745323742.

The spelling of 2638056 in words is "two million, six hundred thirty-eight thousand, fifty-six".

Divisors: 1 2 3 4 6 8 12 24 109919 219838 329757 439676 659514 879352 1319028 2638056