Search a number
-
+
2140927 = 4349789
BaseRepresentation
bin1000001010101011111111
311000202210121
420022223333
51022002202
6113515411
724124525
oct10125377
94022717
102140927
111232568
12872b67
1359c629
143da315
152c4537
hex20aaff

2140927 has 4 divisors (see below), whose sum is σ = 2190760. Its totient is φ = 2091096.

The previous prime is 2140913. The next prime is 2140937. The reversal of 2140927 is 7290412.

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 2140927 - 211 = 2138879 is a prime.

It is a super-3 number, since 3×21409273 = 29439256155866333949, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140907) 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, 24852 + ... + 24937.

It is an arithmetic number, because the mean of its divisors is an integer number (547690).

22140927 is an apocalyptic number.

2140927 is a deficient number, since it is larger than the sum of its proper divisors (49833).

2140927 is an equidigital number, since it uses as much as digits as its factorization.

2140927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49832.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2140927 is about 1463.1906916052. The cubic root of 2140927 is about 128.8844788369.

The spelling of 2140927 in words is "two million, one hundred forty thousand, nine hundred twenty-seven".

Divisors: 1 43 49789 2140927