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20365713 = 322262857
BaseRepresentation
bin100110110110…
…0000110010001
31102022200111200
41031230012101
520203200323
62004301413
7335051154
oct115540621
942280450
1020365713
1110550075
1269a1869
1342b0a24
1429c1c9b
151bc4443
hex136c191

20365713 has 6 divisors (see below), whose sum is σ = 29417154. Its totient is φ = 13577136.

The previous prime is 20365693. The next prime is 20365747. The reversal of 20365713 is 31756302.

It is a happy number.

20365713 is a `hidden beast` number, since 2 + 0 + 3 + 657 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20358144 + 7569 = 4512^2 + 87^2 .

It is not a de Polignac number, because 20365713 - 213 = 20357521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20365753) 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 5 ways as a sum of consecutive naturals, for example, 1131420 + ... + 1131437.

It is an arithmetic number, because the mean of its divisors is an integer number (4902859).

Almost surely, 220365713 is an apocalyptic number.

It is an amenable number.

20365713 is a deficient number, since it is larger than the sum of its proper divisors (9051441).

20365713 is a wasteful number, since it uses less digits than its factorization.

20365713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262863 (or 2262860 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 20365713 is about 4512.8386853509. The cubic root of 20365713 is about 273.0862747086.

The spelling of 20365713 in words is "twenty million, three hundred sixty-five thousand, seven hundred thirteen".

Divisors: 1 3 9 2262857 6788571 20365713