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2089641 = 3696547
BaseRepresentation
bin111111110001010101001
310221011110010
413332022221
51013332031
6112442133
723522151
oct7761251
93834403
102089641
1111a7a84
12849349
13582198
143c5761
152b4246
hex1fe2a9

2089641 has 4 divisors (see below), whose sum is σ = 2786192. Its totient is φ = 1393092.

The previous prime is 2089627. The next prime is 2089643. The reversal of 2089641 is 1469802.

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 not a de Polignac number, because 2089641 - 211 = 2087593 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2089599 and 2089608.

It is not an unprimeable number, because it can be changed into a prime (2089643) 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, 348271 + ... + 348276.

It is an arithmetic number, because the mean of its divisors is an integer number (696548).

22089641 is an apocalyptic number.

It is an amenable number.

2089641 is a deficient number, since it is larger than the sum of its proper divisors (696551).

2089641 is an equidigital number, since it uses as much as digits as its factorization.

2089641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696550.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 2089641 is about 1445.5590614015. The cubic root of 2089641 is about 127.8470055170.

The spelling of 2089641 in words is "two million, eighty-nine thousand, six hundred forty-one".

Divisors: 1 3 696547 2089641