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92820020 = 2254641001
BaseRepresentation
bin1011000100001…
…01001000110100
320110122202010112
411202011020310
5142230220040
613113242152
72204646206
oct542051064
9213582115
1092820020
1148438067
1227103358
13162cb6b7
14c482776
158237365
hex5885234

92820020 has 12 divisors (see below), whose sum is σ = 194922084. Its totient is φ = 37128000.

The previous prime is 92820001. The next prime is 92820029. The reversal of 92820020 is 2002829.

It can be written as a sum of positive squares in 2 ways, for example, as 23697424 + 69122596 = 4868^2 + 8314^2 .

It is a super-2 number, since 2×928200202 = 17231112225600800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (92820029) 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, 2320481 + ... + 2320520.

It is an arithmetic number, because the mean of its divisors is an integer number (16243507).

Almost surely, 292820020 is an apocalyptic number.

It is an amenable number.

92820020 is an abundant number, since it is smaller than the sum of its proper divisors (102102064).

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

92820020 is a wasteful number, since it uses less digits than its factorization.

92820020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4641010 (or 4641008 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 92820020 is about 9634.3147135642. The cubic root of 92820020 is about 452.7730330284.

Adding to 92820020 its reverse (2002829), we get a palindrome (94822849).

The spelling of 92820020 in words is "ninety-two million, eight hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 4641001 9282002 18564004 23205005 46410010 92820020