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9390020 = 225469501
BaseRepresentation
bin100011110100…
…011111000100
3122200001200112
4203310133010
54400440040
6533132152
7142546103
oct43643704
918601615
109390020
115333952
12318a058
131c3a033
14136603a
15c57365
hex8f47c4

9390020 has 12 divisors (see below), whose sum is σ = 19719084. Its totient is φ = 3756000.

The previous prime is 9389987. The next prime is 9390037. The reversal of 9390020 is 200939.

9390020 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 1893376 + 7496644 = 1376^2 + 2738^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234731 + ... + 234770.

It is an arithmetic number, because the mean of its divisors is an integer number (1643257).

Almost surely, 29390020 is an apocalyptic number.

It is an amenable number.

9390020 is an abundant number, since it is smaller than the sum of its proper divisors (10329064).

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

9390020 is a wasteful number, since it uses less digits than its factorization.

9390020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469510 (or 469508 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 9390020 is about 3064.3139525838. The cubic root of 9390020 is about 210.9707138737.

Adding to 9390020 its reverse (200939), we get a palindrome (9590959).

The spelling of 9390020 in words is "nine million, three hundred ninety thousand, twenty".

Divisors: 1 2 4 5 10 20 469501 939002 1878004 2347505 4695010 9390020