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2129395 = 5425879
BaseRepresentation
bin1000000111110111110011
311000011222111
420013313303
51021120040
6113350151
724046102
oct10076763
94004874
102129395
111224934
12868357
135972c8
143d6039
152c0dea
hex207df3

2129395 has 4 divisors (see below), whose sum is σ = 2555280. Its totient is φ = 1703512.

The previous prime is 2129389. The next prime is 2129399. The reversal of 2129395 is 5939212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2129395 - 211 = 2127347 is a prime.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (2129399) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 212935 + ... + 212944.

It is an arithmetic number, because the mean of its divisors is an integer number (638820).

22129395 is an apocalyptic number.

2129395 is a deficient number, since it is larger than the sum of its proper divisors (425885).

2129395 is an equidigital number, since it uses as much as digits as its factorization.

2129395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425884.

The product of its digits is 4860, while the sum is 31.

The square root of 2129395 is about 1459.2446676277. The cubic root of 2129395 is about 128.6526520869.

The spelling of 2129395 in words is "two million, one hundred twenty-nine thousand, three hundred ninety-five".

Divisors: 1 5 425879 2129395