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20590032 = 2432511709
BaseRepresentation
bin100111010001…
…0110111010000
31102202002012210
41032202313100
520232340112
62013152120
7340004151
oct116426720
942662183
1020590032
1110693661
126a8b640
13435bb68
142a3d928
151c1ab3c
hex13a2dd0

20590032 has 40 divisors (see below), whose sum is σ = 53434080. Its totient is φ = 6832000.

The previous prime is 20590027. The next prime is 20590033. The reversal of 20590032 is 23009502.

It is a super-2 number, since 2×205900322 = 847898835522048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20589990 and 20590008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20590033) 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, 11194 + ... + 12902.

It is an arithmetic number, because the mean of its divisors is an integer number (1335852).

Almost surely, 220590032 is an apocalyptic number.

It is an amenable number.

20590032 is an abundant number, since it is smaller than the sum of its proper divisors (32844048).

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

20590032 is a wasteful number, since it uses less digits than its factorization.

20590032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971 (or 1965 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 20590032 is about 4537.6240478911. The cubic root of 20590032 is about 274.0852559389.

Adding to 20590032 its reverse (23009502), we get a palindrome (43599534).

The spelling of 20590032 in words is "twenty million, five hundred ninety thousand, thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 251 502 753 1004 1506 1709 2008 3012 3418 4016 5127 6024 6836 10254 12048 13672 20508 27344 41016 82032 428959 857918 1286877 1715836 2573754 3431672 5147508 6863344 10295016 20590032