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20727007 = 76148541
BaseRepresentation
bin100111100010…
…0010011011111
31110000001002221
41033010103133
520301231012
62020130211
7341114410
oct117042337
943001087
1020727007
1110777564
126b36967
1343a9302
142a77807
151c46507
hex13c44df

20727007 has 8 divisors (see below), whose sum is σ = 24076832. Its totient is φ = 17474400.

The previous prime is 20726971. The next prime is 20727023. The reversal of 20727007 is 70072702.

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 20727007 - 211 = 20724959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20727037) 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, 23844 + ... + 24697.

It is an arithmetic number, because the mean of its divisors is an integer number (3009604).

Almost surely, 220727007 is an apocalyptic number.

20727007 is a deficient number, since it is larger than the sum of its proper divisors (3349825).

20727007 is an equidigital number, since it uses as much as digits as its factorization.

20727007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48609.

The product of its (nonzero) digits is 1372, while the sum is 25.

The square root of 20727007 is about 4552.6922803985. The cubic root of 20727007 is about 274.6916963620.

Adding to 20727007 its reverse (70072702), we get a palindrome (90799709).

The spelling of 20727007 in words is "twenty million, seven hundred twenty-seven thousand, seven".

Divisors: 1 7 61 427 48541 339787 2961001 20727007