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2989450 = 252173517
BaseRepresentation
bin1011011001110110001010
312121212202101
423121312022
51231130300
6144024014
734260412
oct13316612
95555671
102989450
111762022
12100200a
13808909
1457b642
153e0b6a
hex2d9d8a

2989450 has 24 divisors (see below), whose sum is σ = 5889132. Its totient is φ = 1125120.

The previous prime is 2989447. The next prime is 2989451. The reversal of 2989450 is 549892.

It can be written as a sum of positive squares in 6 ways, for example, as 2331729 + 657721 = 1527^2 + 811^2 .

It is a super-2 number, since 2×29894502 = 17873622605000, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2989451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 909 + ... + 2608.

22989450 is an apocalyptic number.

2989450 is a deficient number, since it is larger than the sum of its proper divisors (2899682).

2989450 is a wasteful number, since it uses less digits than its factorization.

2989450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546 (or 3541 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 2989450 is about 1729.0026026585. The cubic root of 2989450 is about 144.0556947628.

The spelling of 2989450 in words is "two million, nine hundred eighty-nine thousand, four hundred fifty".

Divisors: 1 2 5 10 17 25 34 50 85 170 425 850 3517 7034 17585 35170 59789 87925 119578 175850 298945 597890 1494725 2989450