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2806130 = 25280613
BaseRepresentation
bin1010101101000101110010
312021120021202
422231011302
51204244010
6140051202
732565065
oct12550562
95246252
102806130
111647318
12b33b02
13773342
145308dc
153a66a5
hex2ad172

2806130 has 8 divisors (see below), whose sum is σ = 5051052. Its totient is φ = 1122448.

The previous prime is 2806123. The next prime is 2806157. The reversal of 2806130 is 316082.

2806130 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 2289169 + 516961 = 1513^2 + 719^2 .

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

It is an unprimeable number.

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, 140297 + ... + 140316.

22806130 is an apocalyptic number.

2806130 is a deficient number, since it is larger than the sum of its proper divisors (2244922).

2806130 is a wasteful number, since it uses less digits than its factorization.

2806130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280620.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2806130 is about 1675.1507394859. The cubic root of 2806130 is about 141.0487566743.

The spelling of 2806130 in words is "two million, eight hundred six thousand, one hundred thirty".

Divisors: 1 2 5 10 280613 561226 1403065 2806130