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2190041 = 7312863
BaseRepresentation
bin1000010110101011011001
311010021011122
420112223121
51030040131
6114535025
724420650
oct10265331
94107148
102190041
111266457
12897475
135b8aa9
14410197
152d3d7b
hex216ad9

2190041 has 4 divisors (see below), whose sum is σ = 2502912. Its totient is φ = 1877172.

The previous prime is 2190031. The next prime is 2190043. The reversal of 2190041 is 1400912.

It is a happy number.

2190041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2190041 - 210 = 2189017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2190043) by changing a digit.

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, 156425 + ... + 156438.

It is an arithmetic number, because the mean of its divisors is an integer number (625728).

22190041 is an apocalyptic number.

It is an amenable number.

2190041 is a deficient number, since it is larger than the sum of its proper divisors (312871).

2190041 is an equidigital number, since it uses as much as digits as its factorization.

2190041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312870.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2190041 is about 1479.8787112463. The cubic root of 2190041 is about 129.8625964398.

Adding to 2190041 its reverse (1400912), we get a palindrome (3590953).

The spelling of 2190041 in words is "two million, one hundred ninety thousand, forty-one".

Divisors: 1 7 312863 2190041