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2138827 = 7383353
BaseRepresentation
bin1000001010001011001011
311000122220211
420022023023
51021420302
6113501551
724115435
oct10121313
94018824
102138827
111230a29
128718b7
1359b6a2
143d9655
152c3ad7
hex20a2cb

2138827 has 8 divisors (see below), whose sum is σ = 2200464. Its totient is φ = 2078208.

The previous prime is 2138813. The next prime is 2138831. The reversal of 2138827 is 7288312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2138827 - 211 = 2136779 is a prime.

It is a d-powerful number, because it can be written as 210 + 1 + 39 + 82 + 84 + 221 + 75 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2138867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5883 + ... + 6235.

It is an arithmetic number, because the mean of its divisors is an integer number (275058).

22138827 is an apocalyptic number.

2138827 is a deficient number, since it is larger than the sum of its proper divisors (61637).

2138827 is an equidigital number, since it uses as much as digits as its factorization.

2138827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509.

The product of its digits is 5376, while the sum is 31.

The square root of 2138827 is about 1462.4729057319. The cubic root of 2138827 is about 128.8423248309.

The spelling of 2138827 in words is "two million, one hundred thirty-eight thousand, eight hundred twenty-seven".

Divisors: 1 73 83 353 6059 25769 29299 2138827