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20536032 = 2531119447
BaseRepresentation
bin100111001010…
…1101011100000
31102122100010210
41032111223200
520224123112
62012054120
7336360546
oct116255340
942570123
1020536032
1110657030
126a64340
1343403ca
142a27d96
151c09b3c
hex1395ae0

20536032 has 48 divisors (see below), whose sum is σ = 58810752. Its totient is φ = 6222720.

The previous prime is 20536013. The next prime is 20536057. The reversal of 20536032 is 23063502.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×205360322 = 843457220610048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8668 + ... + 10779.

It is an arithmetic number, because the mean of its divisors is an integer number (1225224).

Almost surely, 220536032 is an apocalyptic number.

20536032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20536032 is an abundant number, since it is smaller than the sum of its proper divisors (38274720).

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

20536032 is a wasteful number, since it uses less digits than its factorization.

20536032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19471 (or 19463 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 20536032 is about 4531.6698908901. The cubic root of 20536032 is about 273.8454382522.

Adding to 20536032 its reverse (23063502), we get a palindrome (43599534).

The spelling of 20536032 in words is "twenty million, five hundred thirty-six thousand, thirty-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 132 176 264 352 528 1056 19447 38894 58341 77788 116682 155576 213917 233364 311152 427834 466728 622304 641751 855668 933456 1283502 1711336 1866912 2567004 3422672 5134008 6845344 10268016 20536032