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20452201 = 711265613
BaseRepresentation
bin100111000000…
…1001101101001
31102111002010221
41032001031221
520213432301
62010210041
7335561260
oct116011551
942432127
1020452201
11105aa050
126a23921
1343111c3
142a055d7
151bdeda1
hex1381369

20452201 has 8 divisors (see below), whose sum is σ = 25498944. Its totient is φ = 15936720.

The previous prime is 20452199. The next prime is 20452213. The reversal of 20452201 is 10225402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20452201 - 21 = 20452199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20452261) by changing a digit.

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, 132730 + ... + 132883.

It is an arithmetic number, because the mean of its divisors is an integer number (3187368).

Almost surely, 220452201 is an apocalyptic number.

It is an amenable number.

20452201 is a deficient number, since it is larger than the sum of its proper divisors (5046743).

20452201 is a wasteful number, since it uses less digits than its factorization.

20452201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265631.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 20452201 is about 4522.4109720369. The cubic root of 20452201 is about 273.4723047354.

Adding to 20452201 its reverse (10225402), we get a palindrome (30677603).

The spelling of 20452201 in words is "twenty million, four hundred fifty-two thousand, two hundred one".

Divisors: 1 7 11 77 265613 1859291 2921743 20452201