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2820970 = 25282097
BaseRepresentation
bin1010110000101101101010
312022022122101
422300231222
51210232340
6140244014
732656255
oct12605552
95268571
102820970
111657489
12b4060a
1377a019
1453609c
153aac9a
hex2b0b6a

2820970 has 8 divisors (see below), whose sum is σ = 5077764. Its totient is φ = 1128384.

The previous prime is 2820947. The next prime is 2820971. The reversal of 2820970 is 790282.

2820970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2621161 + 199809 = 1619^2 + 447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2820971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141039 + ... + 141058.

22820970 is an apocalyptic number.

2820970 is a deficient number, since it is larger than the sum of its proper divisors (2256794).

2820970 is a wasteful number, since it uses less digits than its factorization.

2820970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282104.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 2820970 is about 1679.5743508401. The cubic root of 2820970 is about 141.2969614388.

The spelling of 2820970 in words is "two million, eight hundred twenty thousand, nine hundred seventy".

Divisors: 1 2 5 10 282097 564194 1410485 2820970