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2830390 = 25349811
BaseRepresentation
bin1010110011000000110110
312022210120021
422303000312
51211033030
6140355354
733025603
oct12630066
95283507
102830390
111663572
12b45b5a
137813b4
145396aa
153ad97a
hex2b3036

2830390 has 16 divisors (see below), whose sum is σ = 5115600. Its totient is φ = 1127520.

The previous prime is 2830379. The next prime is 2830391. The reversal of 2830390 is 930382.

It is a happy number.

It is a super-2 number, since 2×28303902 = 16022215104200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2830391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3085 + ... + 3895.

It is an arithmetic number, because the mean of its divisors is an integer number (319725).

22830390 is an apocalyptic number.

2830390 is a deficient number, since it is larger than the sum of its proper divisors (2285210).

2830390 is a wasteful number, since it uses less digits than its factorization.

2830390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2830390 is about 1682.3762956010. The cubic root of 2830390 is about 141.4540632600.

The spelling of 2830390 in words is "two million, eight hundred thirty thousand, three hundred ninety".

Divisors: 1 2 5 10 349 698 811 1622 1745 3490 4055 8110 283039 566078 1415195 2830390