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20530062 = 2327162937
BaseRepresentation
bin100111001010…
…0001110001110
31102122000221200
41032110032032
520223430222
62012010330
7336334260
oct116241616
942560850
1020530062
11106525a3
126a609a6
13433a787
142a25b30
151c07eac
hex139438e

20530062 has 24 divisors (see below), whose sum is σ = 50836656. Its totient is φ = 5865696.

The previous prime is 20530039. The next prime is 20530093. The reversal of 20530062 is 26003502.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81343 + ... + 81594.

It is an arithmetic number, because the mean of its divisors is an integer number (2118194).

Almost surely, 220530062 is an apocalyptic number.

20530062 is an abundant number, since it is smaller than the sum of its proper divisors (30306594).

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

20530062 is a wasteful number, since it uses less digits than its factorization.

20530062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162952 (or 162949 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 20530062 is about 4531.0111454288. The cubic root of 20530062 is about 273.8188992773.

Adding to 20530062 its reverse (26003502), we get a palindrome (46533564).

The spelling of 20530062 in words is "twenty million, five hundred thirty thousand, sixty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 162937 325874 488811 977622 1140559 1466433 2281118 2932866 3421677 6843354 10265031 20530062