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20527132 = 2223347643
BaseRepresentation
bin100111001001…
…1100000011100
31102121212221011
41032103200130
520223332012
62011545004
7336322603
oct116234034
942555834
1020527132
111065037a
126a5b164
134339342
142a24a3a
151c071a7
hex139381c

20527132 has 24 divisors (see below), whose sum is σ = 37650816. Its totient is φ = 9773808.

The previous prime is 20527127. The next prime is 20527147. The reversal of 20527132 is 23172502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31603 + ... + 32245.

It is an arithmetic number, because the mean of its divisors is an integer number (1568784).

Almost surely, 220527132 is an apocalyptic number.

It is an amenable number.

20527132 is a deficient number, since it is larger than the sum of its proper divisors (17123684).

20527132 is a wasteful number, since it uses less digits than its factorization.

20527132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 1015 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 20527132 is about 4530.6878065036. The cubic root of 20527132 is about 273.8058724040.

Adding to 20527132 its reverse (23172502), we get a palindrome (43699634).

The spelling of 20527132 in words is "twenty million, five hundred twenty-seven thousand, one hundred thirty-two".

Divisors: 1 2 4 23 46 92 347 643 694 1286 1388 2572 7981 14789 15962 29578 31924 59156 223121 446242 892484 5131783 10263566 20527132