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20606132 = 225151533
BaseRepresentation
bin100111010011…
…0110010110100
31102202220022002
41032212302310
520233344012
62013354432
7340102121
oct116466264
942686262
1020606132
11106a4768
126a98a18
1343662a1
142a45748
151c207c2
hex13a6cb4

20606132 has 6 divisors (see below), whose sum is σ = 36060738. Its totient is φ = 10303064.

The previous prime is 20606119. The next prime is 20606141. The reversal of 20606132 is 23160602.

It can be written as a sum of positive squares in only one way, i.e., 17522596 + 3083536 = 4186^2 + 1756^2 .

It is a super-2 number, since 2×206061322 = 849225352002848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2575763 + ... + 2575770.

It is an arithmetic number, because the mean of its divisors is an integer number (6010123).

Almost surely, 220606132 is an apocalyptic number.

It is an amenable number.

20606132 is a deficient number, since it is larger than the sum of its proper divisors (15454606).

20606132 is a wasteful number, since it uses less digits than its factorization.

20606132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5151537 (or 5151535 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 20606132 is about 4539.3977574123. The cubic root of 20606132 is about 274.1566759827.

Adding to 20606132 its reverse (23160602), we get a palindrome (43766734).

It can be divided in two parts, 2060 and 6132, that added together give a 13-th power (8192 = 213).

The spelling of 20606132 in words is "twenty million, six hundred six thousand, one hundred thirty-two".

Divisors: 1 2 4 5151533 10303066 20606132