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2978283 = 371112893
BaseRepresentation
bin1011010111000111101011
312121022102210
423113013223
51230301113
6143500203
734213020
oct13270753
95538383
102978283
1117546a0
12bb7663
138037c9
14577547
153dc6c3
hex2d71eb

2978283 has 16 divisors (see below), whose sum is σ = 4951296. Its totient is φ = 1547040.

The previous prime is 2978273. The next prime is 2978299. The reversal of 2978283 is 3828792.

It is not a de Polignac number, because 2978283 - 24 = 2978267 is a prime.

2978283 is a lucky number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2978233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6216 + ... + 6677.

It is an arithmetic number, because the mean of its divisors is an integer number (309456).

22978283 is an apocalyptic number.

2978283 is a deficient number, since it is larger than the sum of its proper divisors (1973013).

2978283 is a wasteful number, since it uses less digits than its factorization.

2978283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12914.

The product of its digits is 48384, while the sum is 39.

The square root of 2978283 is about 1725.7702628102. The cubic root of 2978283 is about 143.8760990560.

The spelling of 2978283 in words is "two million, nine hundred seventy-eight thousand, two hundred eighty-three".

Divisors: 1 3 7 11 21 33 77 231 12893 38679 90251 141823 270753 425469 992761 2978283