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2889969 = 3963323
BaseRepresentation
bin1011000001100011110001
312102211021220
423001203301
51214434334
6141535253
733364365
oct13014361
95384256
102889969
1116a4305
12b74529
137a2554
145532a5
153c1449
hex2c18f1

2889969 has 4 divisors (see below), whose sum is σ = 3853296. Its totient is φ = 1926644.

The previous prime is 2889947. The next prime is 2889979. The reversal of 2889969 is 9699882.

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 2889969 - 27 = 2889841 is a prime.

It is a super-2 number, since 2×28899692 = 16703841641922, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2889979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481659 + ... + 481664.

It is an arithmetic number, because the mean of its divisors is an integer number (963324).

22889969 is an apocalyptic number.

It is an amenable number.

2889969 is a deficient number, since it is larger than the sum of its proper divisors (963327).

2889969 is an equidigital number, since it uses as much as digits as its factorization.

2889969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963326.

The product of its digits is 559872, while the sum is 51.

The square root of 2889969 is about 1699.9908823285. The cubic root of 2889969 is about 142.4397036377.

The spelling of 2889969 in words is "two million, eight hundred eighty-nine thousand, nine hundred sixty-nine".

Divisors: 1 3 963323 2889969