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992020 = 225193257
BaseRepresentation
bin11110010001100010100
31212101210111
43302030110
5223221040
633132404
711301121
oct3621424
91771714
10992020
11618357
123ba104
132896c3
141bb748
15148dea
hexf2314

992020 has 24 divisors (see below), whose sum is σ = 2102184. Its totient is φ = 393216.

The previous prime is 992011. The next prime is 992021. The reversal of 992020 is 20299.

It can be written as a sum of positive squares in 4 ways, for example, as 242064 + 749956 = 492^2 + 866^2 .

It is a junction number, because it is equal to n+sod(n) for n = 991982 and 992000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992021) 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, 3732 + ... + 3988.

It is an arithmetic number, because the mean of its divisors is an integer number (87591).

2992020 is an apocalyptic number.

It is an amenable number.

992020 is an abundant number, since it is smaller than the sum of its proper divisors (1110164).

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

992020 is a wasteful number, since it uses less digits than its factorization.

992020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 992020 is about 996.0020080301. The cubic root of 992020 is about 99.7332892864.

It can be divided in two parts, 9 and 92020, that added together give a palindrome (92029).

The spelling of 992020 in words is "nine hundred ninety-two thousand, twenty".

Divisors: 1 2 4 5 10 20 193 257 386 514 772 965 1028 1285 1930 2570 3860 5140 49601 99202 198404 248005 496010 992020