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2882020 = 225294969
BaseRepresentation
bin1010111111100111100100
312102102101111
422333213210
51214211040
6141434404
733332251
oct12774744
95372344
102882020
111699339
12b6ba04
1379ba4b
14550428
153bddea
hex2bf9e4

2882020 has 24 divisors (see below), whose sum is σ = 6262200. Its totient is φ = 1112832.

The previous prime is 2881951. The next prime is 2882021. The reversal of 2882020 is 202882.

It can be written as a sum of positive squares in 4 ways, for example, as 86436 + 2795584 = 294^2 + 1672^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2881982 and 2882000.

It is not an unprimeable number, because it can be changed into a prime (2882021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1905 + ... + 3064.

It is an arithmetic number, because the mean of its divisors is an integer number (260925).

22882020 is an apocalyptic number.

2882020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2882020 is an abundant number, since it is smaller than the sum of its proper divisors (3380180).

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

2882020 is a wasteful number, since it uses less digits than its factorization.

2882020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5007 (or 5005 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 2882020 is about 1697.6513187342. The cubic root of 2882020 is about 142.3089879450.

The spelling of 2882020 in words is "two million, eight hundred eighty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 4969 9938 19876 24845 49690 99380 144101 288202 576404 720505 1441010 2882020