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2830180 = 225141509
BaseRepresentation
bin1010110010111101100100
312022210021111
422302331210
51211031210
6140354404
733025153
oct12627544
95283244
102830180
1116633a1
12b45a04
13781282
1453959a
153ad88a
hex2b2f64

2830180 has 12 divisors (see below), whose sum is σ = 5943420. Its totient is φ = 1132064.

The previous prime is 2830153. The next prime is 2830181. The reversal of 2830180 is 810382.

2830180 = T356 + T357 + ... + T395.

It can be written as a sum of positive squares in 2 ways, for example, as 1327104 + 1503076 = 1152^2 + 1226^2 .

It is not an unprimeable number, because it can be changed into a prime (2830181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70735 + ... + 70774.

It is an arithmetic number, because the mean of its divisors is an integer number (495285).

22830180 is an apocalyptic number.

2830180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2830180 is an abundant number, since it is smaller than the sum of its proper divisors (3113240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2830180 is a wasteful number, since it uses less digits than its factorization.

2830180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141518 (or 141516 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 2830180 is about 1682.3138827222. The cubic root of 2830180 is about 141.4505647918.

The spelling of 2830180 in words is "two million, eight hundred thirty thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 141509 283018 566036 707545 1415090 2830180