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2989853 = 7094217
BaseRepresentation
bin1011011001111100011101
312121220022022
423121330131
51231133403
6144025525
734261526
oct13317435
95556268
102989853
111762359
1210022a5
13808b59
1457b84d
153e0d38
hex2d9f1d

2989853 has 4 divisors (see below), whose sum is σ = 2994780. Its totient is φ = 2984928.

The previous prime is 2989849. The next prime is 2989879. The reversal of 2989853 is 3589892.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1545049 + 1444804 = 1243^2 + 1202^2 .

It is a cyclic number.

It is not a de Polignac number, because 2989853 - 22 = 2989849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2989823) 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, 1400 + ... + 2817.

It is an arithmetic number, because the mean of its divisors is an integer number (748695).

22989853 is an apocalyptic number.

It is an amenable number.

2989853 is a deficient number, since it is larger than the sum of its proper divisors (4927).

2989853 is an equidigital number, since it uses as much as digits as its factorization.

2989853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4926.

The product of its digits is 155520, while the sum is 44.

The square root of 2989853 is about 1729.1191399091. The cubic root of 2989853 is about 144.0621677301.

The spelling of 2989853 in words is "two million, nine hundred eighty-nine thousand, eight hundred fifty-three".

Divisors: 1 709 4217 2989853