Search a number
-
+
2830120 = 23570753
BaseRepresentation
bin1010110010111100101000
312022210012021
422302330220
51211030440
6140354224
733025036
oct12627450
95283167
102830120
111663347
12b45974
13781237
14539556
153ad84a
hex2b2f28

2830120 has 16 divisors (see below), whose sum is σ = 6367860. Its totient is φ = 1132032.

The previous prime is 2830099. The next prime is 2830123. The reversal of 2830120 is 210382.

It is a happy number.

2830120 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 2696164 + 133956 = 1642^2 + 366^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2830094 and 2830103.

It is not an unprimeable number, because it can be changed into a prime (2830123) 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, 35337 + ... + 35416.

22830120 is an apocalyptic number.

2830120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2830120 is an abundant number, since it is smaller than the sum of its proper divisors (3537740).

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

2830120 is a wasteful number, since it uses less digits than its factorization.

2830120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70764 (or 70760 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2830120 is about 1682.2960500459. The cubic root of 2830120 is about 141.4495651977.

The spelling of 2830120 in words is "two million, eight hundred thirty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 70753 141506 283012 353765 566024 707530 1415060 2830120