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2582020 = 225718443
BaseRepresentation
bin1001110110011000000100
311212011212101
421312120010
51130111040
6131201444
730642520
oct11663004
94764771
102582020
111503a01
12a46284
136c532c
144b2d80
1536009a
hex276604

2582020 has 24 divisors (see below), whose sum is σ = 6197184. Its totient is φ = 885216.

The previous prime is 2582009. The next prime is 2582029. The reversal of 2582020 is 202852.

It is not an unprimeable number, because it can be changed into a prime (2582029) 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, 9082 + ... + 9361.

It is an arithmetic number, because the mean of its divisors is an integer number (258216).

22582020 is an apocalyptic number.

2582020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2582020 is an abundant number, since it is smaller than the sum of its proper divisors (3615164).

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

2582020 is a wasteful number, since it uses less digits than its factorization.

2582020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18459 (or 18457 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2582020 is about 1606.8665159247. The cubic root of 2582020 is about 137.1891822256.

Adding to 2582020 its reverse (202852), we get a palindrome (2784872).

It can be divided in two parts, 258 and 2020, that added together give a triangular number (2278 = T67).

The spelling of 2582020 in words is "two million, five hundred eighty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 18443 36886 73772 92215 129101 184430 258202 368860 516404 645505 1291010 2582020