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20364041 = 131915439
BaseRepresentation
bin100110110101…
…1101100001001
31102022121012202
41031223230021
520203122131
62004245545
7335043245
oct115535411
942277182
1020364041
1110549895
1269a08b5
1342b0039
1429c1425
151bc3bcb
hex136bb09

20364041 has 4 divisors (see below), whose sum is σ = 20380800. Its totient is φ = 20347284.

The previous prime is 20364037. The next prime is 20364073. The reversal of 20364041 is 14046302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14046302 = 27023151.

It is a cyclic number.

It is not a de Polignac number, because 20364041 - 22 = 20364037 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20364341) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 6401 + ... + 9038.

It is an arithmetic number, because the mean of its divisors is an integer number (5095200).

Almost surely, 220364041 is an apocalyptic number.

It is an amenable number.

20364041 is a deficient number, since it is larger than the sum of its proper divisors (16759).

20364041 is a wasteful number, since it uses less digits than its factorization.

20364041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16758.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20364041 is about 4512.6534322946. The cubic root of 20364041 is about 273.0788011549.

The spelling of 20364041 in words is "twenty million, three hundred sixty-four thousand, forty-one".

Divisors: 1 1319 15439 20364041